I've been considering changing the layout of my lair and with yesterday's patch, it became more attractive to do it now, so I'm needing some advice from the more experienced dragons out there

My lair is a 4x5x6 in Harro, which is sparsely populated on Chaos, so I originally planned my lair to be pretty self sufficient - all machines, vault, consigner, etc.

Currently I have all the machine chambers on level 0 and 1, but they are all T1/T2. I find that I don't use the machines as much as I thought I would. For the T1/T2 work I've mostly been doing so far, it's easiest to make the items in the field and recall back to the lair to apply them. Is that something that will change at higher Tiers?

If I'm not going to use the machines, I'll replace them with more storage, but if it's advantageous or more effecient at higher Tiers to use lair machines, I'll upgrade them to higher Tiers in the rebuild (I have some T4/T6 libraries and chambers planned at lower levels).

Thanks for any advice you can send my way