All way over my head/budget but seems you have put a alot of thought into it and buying lots of good equipment, so you are prolly way ahead of my experience level anyway.
But from what i know those spaces will only be good for small/young plants, you are gonna need to allow more room for the growth even if you lst.
I think i have heard/read on this forum to allow 1sf per plant, but have also seen some really tight little jungles in pics, so my approach is prolly way off. I only have tried a few plants in about the same area and 3-4feet high.