Hey joint,
A few things to think about if you want the most return on investment of labor and $:
In a previous life I ran something much like the aeroflow----except much improved---and here's why I think so.
1) with the tubes (channels) all the sme height----the tallest plants dictate light heigth, soooooo----why not hang the tubes from the ceiling using dog chain and the ability to slide them apart on a box rail and rollers (used for sliding barn, warehouse doors, etc----works great.
2) add to each tube a 1" drain fitting and hose and a 3/4" sprayline fitting and water hose for the spray line------this ambilical cord method allows tubes to be easily adjusted vertically (more plant material receiving light). This also makes easy access to the center of the canopy for prunning, trainning and harvest.
3) you didn't mention what kind of reflectors for your 1Ks, are they air cooled? Using a mover? ----if not----do so----well worth the investment.
Back in the day, my tubes were 6" x 10' pvc and three 1Ks (two in a 5' cool tube, one in a 2' cooltube------this method allowed me to place the lights around 5' from floor and position tubes so at finish ------product was all the way around the lights forming a cylinder of buds.
The reason I did this was to try and maximize our weakest environmental link----atrifical light intensity.
Don't know if you're still reading this----if interested---I'll try and find some old pics of the setup----lots more to offer to the "cause".
BTW---the main advantage to aero is more dissolved oxygen to the roots and the automation ability----plus monitor and controll.
I ran 7 ml micro, 14 ml bloom per gallon all the way through flowering---no complaints.
Have fun,
A~