Help planning a large RDWC basement grow

I have a basement and I wanted to calculate if it would be worth an investment to do a large grow. If I did, what would an ideal setup look like?

I have 6' of height to work with, so I assume 1000w lights are out of the question because it could burn the plants when they got too big. Rather not have to invest too much money on AC.

I would like to grow as few plants as possible, but I don't want to veg for 2 months either. If I'm vegging for a month or so, is a 1ftx1ft area enough, or should I do 2ftx2ft?

I have about 15ftx15ft. I was thinking Giving myself a 2ft aisle from the wall, then putting 2-2ftx2ft plants back to back, followed by another 2ft aisle, and so on. This should give me 8 plants per row and 4 rows. I was thinking of using a 600w light for each pair of plants.

What do you guys think? Advice? Input? What's a range of how much bud I can expect to produce per light?

Bump

A healthy breaker box.

I grow in a basement as well. And I use 600w MH/ HPS with some side lights . It is too damn hot to grow in the summer so I try for three cycles in the winter.