What we have here is a list of T4/5 techs that people on the Order server have, and are willing to make items with. If you have T4 or T5 techs, and are willing to make items for the public at large, please reply to this post with what techs you have, and what types of items you can make (tools, weapons, cloth armor, etc).
Someone asked me to also put down what components are required for these techs. Backfilling this would be very difficult, so instead I am going to post a few helpful links that should more than take care of your tech questions and needs.
First, Dugon's excellent Online Technique Database: http://quadric.customer.netspace.net.au/techs/
This site is great! It has techs crossreferenced by type, ingredient, etc.
Second, the Horizons Crafting Calculator: http://community.istaria.com/Web/ShowPost.aspx?PostID=70
This is the coolest thing ever! It allows you to plan out ANYTHING to be crafted, as if you had all the techs in the game and the ability to make everything. It allows you to completely set up what you want, how you want it, and will even give you an html report with all the comps you need, cost, etc. Use it, you will love it, and whoever crafts for you will love you even more.
Craft Techs:
Alchemy IV
Kark (Cargo Armor, Tools)
Enkmar (??)
Tigris (Metal Armor, Cloth Armor)
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Alchemy V
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Tigris (Metal Armor, Cloth Armor)
Armorcraft V
Kark (Cargo Armor, Tools)
Clothworking IV
Redwind (Cloth Armor)
Earthencraft IV
Kark (Cargo Armor, Tools)
Enchanting V
Walter (Jewelry)
Essence Harvesting IV
Kumu (Scales)
Essence Harvesting V
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Essence Shaping V
Maltavorn (Scales)
Walter (Jewelry)
Essence Structuring IV
Kark (Cargo Armor, Tools)
Djanee (Metal Armor, Cargo Armor, Tools)
Walter (Jewelry)
Essence Structuring V
Djanee (Metal Armor, Cargo Armor, Tools)
Fishing V
Rashir (Wood Tools, ??)
Peredhel (Jewelry, ??)
Fitting V
Neon (Jewelry)
Fletching V
Felinor (Wood tools)
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Walter (Jewelry)
Gemworking V
Padishar (Scales)
Maltavorn (Scales)
Jewelcraft IV
Walter (Jewelry)
Jewelcraft V
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Logging V
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Neon (Jewelry)
Leatherworking V
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Lumbering V
Kark (Cargo Armor, Tools)
Masonry V
Neon (Jewelry)
Metalworking V
Neon (Jewelry)
Peredhel (Jewelry)
Mining IV
Thugg (Tools, ??)
Enkmar (??)
Peredhel (Jewelry, ??)
Mining V
Padishar (Scales)
Quarrying V
Kumu (Scales)
Neon (Jewelry)
Salvaging IV
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Scalecraft IV
Maltavorn (Scales)
Scalecraft V (Scales)
Kumu (Scales)
Sculpting V
Neon (Jewelry)
Smelting IV
Tigris (Metal Armor, Cloth Armor)
Kumu (Scales)
Smelting V
Enkmar? (rumor)
Kumu (Scales)
Maltavorn (Scales)
Spellcraft IV
Kumu (Scales)
Maltavorn (Scales)
Spellcraft V
Kark (Cargo Armor, Tools)
Kumu (Scales)
Spinning IV
Kark (Cargo Armor, Tools)
Gronar (Cloth Armor)
Stoneworking V
Neon (Jewelry)
Tailoring V
Joolara (Jewelry, Tools, ??)
Tinkering IV
Enkmar (??)
Pryde (Jewelry,??)
Tinkering V
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Neon (Jewelry)
Transmutation IV
Djanee (Metal Armor, Cargo, Tools)
Weaponcraft IV
Thugg (Tools, ??)
Weaponcraft V
Neon (Jewelry)
Weaving V
Djanee (Metal Armor, Cargo Armor, Tools)
Woodworking V
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Adventure Techs:
Blight V
Felinor (??)
Bow V
Felinor (Bows)
Crossbow V
Tigris (Metal Armor, Cloth Armor)
Dragon's Breath V
Maltavorn (Scales)
Energy V
Neon (Jewelry)
Tigris (Metal Armor, Cloth Armor)
Kulamata (Metal Armor)
Flame V
Walter (Jewelry)
Ice IV
Tigris (Metal Armor, Cloth Armor)
Ice V
Walter (Jewelry)
Life V
Zermanas (Metal Armor, Weapons, Cargo, Jewelry)
Walter (Jewelry)
Nature V
Felinor (Bows, ??)
One Hand Crush V
Felinor (Wooden weapons, ??)
Power Shot IV
Rashir (Wooden Weapons)
Power Shot V
Felinor (Bows)
Primal V
Maltavorn (Scales)
Spirit V
Walter (Jewelry)
Tooth and Claw IV
Kumu (Scales)
Maltavorn (Scales)
Tooth and Claw V
Maltavorn (Scales)
Two Hand Crush IV
Zermanas (Metal Armor, Weapons, Cargo, Jewelry)
Djanee (Metal Armor)
Two Hand Crush V
Walter (Jewelry, Weapons)
Rakkir (Metal Armor)
Two Hand Slash V:
Zermanas (Metal Armor, Weapons, Cargo, Jewelry)
Kulamata (Metal Armor)
Unarmed IV
Gronar (Cloth Armor, Hand Wraps)
Walter (Jewelry)
Unarmed V
Tigris (Metal Armor, Cloth Armor)
Defense Techs:
Armor V
Armageddon (Metal Armor, ?????)
Kumu (Scales)
Arley (Metal Armor)
Neon (Jewelry)
Blight Resistance IV
Kumu (Scales)
Blight Resistance V
Joolara (Jewelry, Weapons, Armor?)
Blight Ward IV
Maltavorn (Scales)
Blight Ward V
Kumu (Scales)
Tigris (Metal Armor, Cloth Armor)
Block V
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Crush Resistance V
Kulamata (Metal Armor)
Rakkir (Metal Armor)
Energy Resistance IV
Maltavorn (Scales)
Kumu (Scales)
Energy Ward IV
Maltavorn (Scales)
Flame Resistance IV
Neon (Jewelry)
Kumu (Scales)
Flame Ward IV
Kumu (Scales)
Flame Ward V
Kumu (Scales)
Ice Resistance IV
Tigris (Metal Armor, Cloth Armor)
Ice Ward IV
Kumu (Scales)
Life Resistance V
Neon (Jewelry)
Mind Resistance IV
Maltavorn (Scales)
Mind Ward V
Maltavorn (Scales)
Nature Resistance IV
Kumu (Scales)
Nature Resistance V
Tigris (Metal Armor, Cloth Armor)
Nature Ward IV
Maltavorn (Scales)
Nature Ward V
Tigris (Metal Armor, Cloth Armor)
Parry V
Salishaz (Weapons)
Pierce Resistance IV
Kumu (Scales)
Pierce Resistance V
Kulamata (Metal Armor)
Pierce Ward IV
Gronar (Cloth Armor)
Primal Resistance IV
Neon (Jewelry)
Kumu (Scales)
Primal Ward V
Maltavorn (Scales)
Slash Ward V
Maltavorn (Scales)
Spirit Resistance IV
Kumu (Scales)
Maltavorn (Scales)
Statistic Techs:
Dexterity V
Zermanas (Metal Armor, Weapons, Cargo, Jewelry)
Kumu (Scales)
Focus IV
Maltavorn (Scales)
Kumu (Scales)
Walter (Jewelry)
Focus V
Kumu (Scales)
Rashir (Wooden Tools, Wooden Weapons, ??)
Zermanas (Metal Armor, Tools, Cargo, Jewelry)
Health IV
Gronar (Cloth Armor)
Maltavorn (Scales)
Health V
Kulamata (Metal Armor)
Power IV
Kumu (Scales)
Power V
Gronar (Cloth Armor)
Walter (Jewelry, Weapons, Tools)
Primal V
Kumu (Scales)
Speed IV
Maltavorn (Scales)
Speed V
Rakkir (Metal Armor)
Arley (Metal Armor)
Primal (Metal Armor)
Strength V
Kulamata (Metal Armor)
Walter (Jewelry)
Tooth and Claw V
Kumu (Scales)
Padishar (Scales)
Velocity IV
Maltavorn (Scales)
Velocity V
Kumu (Scales)
Maltavorn (Scales)
Spell Techs:
Accuracy V
Ravenatha (Spells)
Kumu (Spells)
Maltavorn (Spells)
Bane IV
Maltavorn (Spells)
Kumu (Spells)
Blight Damage V
Maltavorn (Spells)
Kumu (Spells)
Blight Poison IV
Maltavorn (Spells)
Burning Damage V
Maiyr (Spells)
Chill IV
Maltavorn (Spells)
Chill V
Ravenatha (Spells)
Padishar (Spells)
Cinder V
Maltavorn (Spells)
Combust V
Maltavorn (Spells)
Kumu (Spells)
Concentrated IV
Maltavorn (Spells)
Covalence V
Maltavorn (Spells)
Kumu (Spells)
Critical Damage IV
Kumu (Spells)
Critical Damage V
Maltavorn (Spells)
Derange IV
Kumu (Spells)
Derange V
Maltavorn (Spells)
Dragon Breath V
Kumu (Spells)
Energy Damage IV
Maltavorn (Spells)
Flame Damage IV
Maltavorn (Spells)
Flame Damage V
Peredhel (Spells)
Maiyr (Spells)
Maltavorn (Spells)
Flame Range IV
Maltavorn (Spells)
Flame Range V
Maiyr (Spells)
Fortify V
Kumu (Spells)
Gale IV
Padishar (Spells)
Kumu (Spells)
Gale V
Kumu (Spells)
Heal Increase V
Peredhel (Spells)
Maltavorn (Spells)
Ice Damage V
Ravenatha (Spells)
Padishar (Spells)
Ice Range IV
Maltavorn (Spells)
Ice Range V
Kumu (Spells)
Maltavorn (Spells)
Ice Snare IV
Maltavorn (Spells)
Ice Snare V
Maltavorn (Spells)
Numbing IV
Maltavorn (Spells)
Numbing V
Maltavorn (Spells)
Pierce V
Maltavorn (Spells)
Primal Damage IV
Kumu (Dragon Spells)
Primal Damage V
Padishar (Dragon Spells)
Primal Range IV
Kumu (Dragon Spells)
Potency V
Maltavorn (Spells)
Peredhel (Spells)
Primal Range V
Kumu (Dragon Spells)
Padishar (Dragon Spells)
Maltavorn (Spells)
Pierce IV
Kumu (Spells)
Shocked IV
Maltavorn (Spells)
Shocked V
Maltavorn (Spells)
Spirit Damage V
Padishar (Spells)
Kumu (Spells)
Spirit Range IV
Maiyr (Spells)
Tier V Dyes:
Blood Dye
Joolara (Cloth Armor, Metal Armor)
Gronar (Cloth Armor)
Tigris (Metal Armor, Cloth Armor)
Dark Green
Zermanas (Metal Armor)
Essence Dye
Kark (Cargo Armor)
Garnet Dye
Zermanas (Metal Armor)
Kulamata (Metal Armor)
Jasper Dye
Gronar (Cloth Armor)
Purple Dye
Gronar (Cloth Armor)
Djanee (Cargo Armor, Metal Armor)
Zermanas (Metal Armor)
Obsidian Dye
Zermanas (Metal Armor)
Radiant Dye
Ashtoreth (Cloth Armor, ??)
Zermanas (Metal Armor)
Kulamata (Metal Armor)
Turqouise
Zermanas (Metal Armor, Weapons, Cargo, Jewelry)
Banners:
Volcano IV
Enkmar
Tempeset IV
Enkmar