Ok so I have some changes from the original list of equipment. Here they are.

-One single 40 gallon reservoir, no gravity fed reservoir (we decided that we'd rather change out the entire nutrient solution once in awhile instead of always topping it off)
-Cool Reflector 6" hoods instead of the XL 8" hoods (we found that these cool better and the 8" ducts lose to much light out the ends and only a 6" fan is required to cool all 4 750 digital lights)
-8 socket CAP MLC-8A electrical box (Has 2 trigger cords so that 4 lamps are controlled by one trigger and the other 4 by the other trigger - 2 rooms one box). This is used instead of our homemade single trigger 6 outlet 240 box
-350gph water pump is enough, 500gph is not needed
-Only one single 10" Can Fan Maxx fan (not 2) needed for the room
-6" Can Fan for cooling the sealed lights instead of another 10" (10" was way overkill)
-Only one 35 watt airpump is more then enough for the entire 16 buckets, 85 watt not required and too loud)
-32 straight 1/4" barbs instead of 24
-100 feet of 1/2" OD for feed line
-120 feet 3/4" OD (not ID) return line
-100 feet of 1/4" OD (not ID) airhose
-50 feet of 1/4" OD (not ID) black hose for feed line
-120 7/8" hose clamps instead of 70 (This is a big deal, because hose clamps cost $0.80 each. Thats $100 in hose clamps)

Those are the big changes. We were able to reduce costs by over $500 by using the different hoods and getting rid of one of the Can Fan 10" Maxx fans (expensive). The new CAP MLC-8 240 box also allows us to use a single box for 2 of our grow rooms, saving space and increasing safety and control.

Its been difficult to get everything to be on the same plane, as everything must be exactly the same elevation or the buckets will have different water levels and not drain correctly. We had some nutrient burn from a little to much VitaBoost (wanted to experiment) but they are recovering just fine. More pictures soon.