(1) small fountain pump w/ reservoir outside tent, piped into the tent via drip line....put each plant on a flood tray, in a large tote, or even the tray in a dog crate will work (anything to catch the run off). Pipe flood tray or tote to drain into a sealed reservoir inside your tent, with a small fountain pump inside, being piped out of the tent.
Turn on main pump, water plants, run off drains from plants and accumulates in a separate waste reservoir, then you pump it out by plugging in the other smaller pump and you're done. You could go all cycle and never open the tent on account of watering. If you're resourceful, you could probably put something together that would work for half of what you noted in your original post. Good luck.
