Make sure you have a giant carbon scrubber, bigger the better. Use Co2 for sure, just vent your hoods and seal your room. Keep temps at 80 degrees. Consider making a disinfectant room before your grow rooms so as not to contaminate the plants with spider mites. with such a large investment would be a shame for the crops to get ruined. You need good air flow as well. Constantly have those leaves moving. I would do shorter harvest rather than one large. you can get 2 good ones done in 6 months but for the yields you are talking about, 70 lbs you need around 550-600 plants. that means 28 600 w lights, 4 for each 100 plants. or you could get away with 14 1,000 w, but you better use Co2 if you want the yeilds your talking about. It is a must to use hydro, I know all the BC growers use soil, but they have places to put it and they have 5 man teams for every 1000 plants. I hope you have a partner, 500 plants for yourself can be daunting when harvesting time comes around. You will want to make a separate drying space because you will want to get your next crop in as fast as possible. Research the right way to cure your plants because if you want to get rid of product fast you need to have good quality. A proper cure can raise the THC levels of your plants not to mention make them smoke smooth like butter. you will a lot of clones btw, so figure that out to. You were talking about 2 rooms 1 for flower 1 for veg. Consider having 5 rooms and not moving your plants, just changing light schedules. I think with so many plants this will be easier. Dont tell anyone you grow, be nice to your neighbors, if you bring equipment to your house bring it in through the garage. Be real fucking low key. Dont even post on these sites, i could get your IP adress, then your adress, then raid you. be carefull. at the end of the year your going to make close to 500 grand, thats intices a lot of theives. DONT TELL ANYONE. I dont want to be rude but you sound like a typical stoner. Dont tell anyone! If you want to cut down on electric cost to avoid suspision, use floros for the veg.
my veg times would be 4-5 weeks.
Good luck bro, I wish you the best. respects for trying out such a big grow.
p.s. set up all your sell contacts BEFORE you start to grow. Ask them if they will buy exactly what strain you are growing and for how much money. Buyers have been known to change the prices after your grow is finished beacuase they know you need to get rid of it. so have several contacts. Dont go black market unless you do it super low key, you need differnt people to sell your shit, dont sell it yourslef unless you want to be followed and robbed. when your daling with dollar figures that high criminals will find you. Do it once for 6 month and get the hell out of the biz.