If you havn't already made the purchases...

For a newbie to purchase, assemble and use...all of this stuff is going to be a nightmare. Do you have growing experience?

If it's for you and your back as stated, most of the items listed is overkill. Hard to work around, and extremely difficult to dial-in and find a working result. Then there's replacement costs, power consumption, testing meters.... Sure you wouldn't want to learn to grow for yourself, before you go commercial? (which is what this set-up ammounts to)