I think I posted this many moons ago but I still think its a nice idea. We all have plots/Lairs So why not be able to build a small structure that can house a resource node or two that the owner/guild could harvest?
Make the structures themself kinda expensive to offset the resouce being there, make the respawn like an hour or 2, so that you dont need to stay on your plot to get T6. Just being there could help crafters if they fall short on resources etc, lairs could have resource caves.