lots space, i envyyou
i ended up going with a 10x12 with 12 bucket system RDWC, but from what everyone has told me i should have gone with something a little easier and less risky type of grow like a drip to waste in cocoa, i just wanted to do it my way
working out good but efficiency wise, i think a drip to waste would waste less water than the rdwc system unless you are recycling your water back through RO, also dont forget to maybe plan for a sealed space for mothers and a curing spot, and maybe even a veg spot so you can run cycles,
also have to think about logistics/practicality of certain types of grows in your particular system, do you have available a drain? do you have space for a water tank, do you have water supply , etc. etc. etc.