Are you going to slowly expand to new crops?
Looks cool, but costly.
If all goes well I will build a 100+ cell system for strawberries next year, I currently already grow them in soil but hydroponics is just so much better. I will need a bigger reservoir though because I have about ~70 cells and it uses over half of the water. I think I will get 200-300 gallon reservoir and just use that to feed both systems.
I will most likely need 2-3 1000GPH pumps.
The 55 gallon reservoir I have dug into the ground to keep the water cool to help prevent root rot.
If we have a mild winter I may be able to pull off growing cold weather crops in it outside.
Next picture update will be tomorrow.