Dude this room is epic. I'm wondering though, won't your rh go crazy while the room is flooded for waterings? Or is it okay to have rh that high as long as it's only an hour or so? Don't fool yourself thinking molds and mildews can't get in man, spores are everywhere. Unless you sterilized that room beforehand, then it can still happen.
My second question is that if a disease or pest problem ever did become aparent, do you think it would be managable? I just mean with almost all your space taken up by pots, do you think it would be managable to treat all the plants effectively?
No hating or anything, just tryin to fully wrap my head around your setup.