Tell us more about the hydro setup and how you plan on a sea of green working out.
just say you run flood tables, one for each stage of the sea. you have to have one for each stage to feed and flush for that stage of flower. you will also need to coordinate this with your veg and mother room. maybe an auto flower strain that you only expect 1/4 to 1/2 from.

I would say as many 6x6 inch rockwool or other grow block that you can fit n the table. one stem one bud. I have seen a cousin do 50 in a tray at 1/4 each but not a see of green more a one time gorrilla grow and run.
As said the numbers you need steps up the game with the feds.