Pretty damn sweet project but with the current size of this thing and the fact that you've basically purchased all the equipment needed, why not just get something like this. It'll take up roughly the same amount of space, looks more discreet, and offer more versatility at only $55. I personally just picked up a 2ftx2ftx3ft grow tent for seedling and clones that i love. Just a heads up as well, if you can afford it a hlg 65 or a hlg 100 are currently one of the most energy efficient lighting designs available (quantum boards). Cobs are great too (vero29's are a great value imo) but these quantum boards have awesome coverage, produce very little heat, and are passively cooled.