The hassle of setting up a large commercial grow is complex enough.. The plumbing setup time and the possibility of leaks is and problems almost takes away from the increased yield.
I think hand water coco DTW is the better for large setups. Fabrication is very minimal, and with your novice questions would be better because it operates like soil. With DTW no constant monitoring of ph is needed.
Again with larger setups I'm ok with general hydroponics, however I'm partial to the dry series of nutrients, maxigrow and maxibloom. You can adjuncts from there and by themselves they perform very well.
General hydroponic flora series are great. I mainly buy 2 bottles.. The micro and bloom and it covers everything for cannabis.. Find a npk calc and you can customize your ratios. For me in bloom I run a 1:2 ratio 5ml micro 10 ml bloom per gal.