Love the nether transit idea. Willing to help there I can survive nether pretty easy for long periods. Mailboxes are awesome too. The brewery I like but can see how that could go bad, someone stealing all the potions. I plan to attempt a zombie pigman/ghast/magma cube farmer in nether by half slabbing a HUUUUUUGE portion of nether stopping spawning so they spawn faster in the spawner area, so that will help with tears/gold nuggets/magma creams. Until something like that gets done the brewery would probably just be HP/speed pot dump lol.