Ohhey sup, I just updated actually.
You want to keep your humidity LOOOOW!!!! Mine stays in the high 20s.
The thing is I DO have a second grow space which is a small mother/cloning closet. You can easily build one with a portable tool shed like Xcrispi did. His is VERY nice.
I've only got a single 1000 going right now because I don't have enough plants to fill the space, but doing all the work myself, the total is going to be:
2x1000HPS Sunsystem X.... $350 each including all the toys
1x400HPS inside sun... I think it was like $150... it's for the first 2 weeks that the plants are in that room, I can just cram a whole bunch under there because they are still short and the light penetration isn't a problem.. it's suitable for only a 3x3 foot floor space, hung ~20 inches from the plants
Exhaust shit... 2 duct booster fans, $30 each at home depot, 16 feet of flexible duct hose, the good shit, not that plastic crap, $25 also at home dePOT, and a roll of duct tape. You have to wire that shit yourself.
Okay also a bunch of Panda film to make a light-lock entryway where I can keep additional fans... even though I have an active intake, there's a fan in the entryway blowing even more air around the edges of the film. That fan only comes on when the lights are on but the duct fans are on 24 hours a day to make sure temperatures remain not constant, but dont fluctuate more than 15 degrees.
The room that the closet is off has an air conditioner in it that is on a thermostat and runs when temps get above 70, and the closet stays below 85.
MR Overgrow I can't say this enough!! You need LOTS of airflow and LOTS of light.

ima go copy part of this post back into my log too.