So Im taking a woodshop class this year, and we can make whatever we want, starting next week if we pay for the wood. My plan is to grow white widow a few times, and learn from those grows and later move on to an SOG-perpetual style grow. My dimensions will be 3x3x~5. About how tall should it be so it will allow an adequately-sized plant and later an SOG style grow (not too large because there will be "unused" space)? Probably growing feminized White Widow or Northern Lights, making an organic soil mix, using CFLs and later with MH for veg and a 400w HPS. Is that the best size for flowering in this space? Im not sure on ventilation, Ill research that after I know 100% what light Im getting.