PPP can have multiple lateral branches and benefits from having some space. I topped mine once at the 6th node and they are now about 36" from top of soil - they approx. doubled from the 18" they were when I changed to 12/12. I can fit 4 in a Hydrohut mini (39" x 39") but it's tight. They could easily use a 2' x 2' to themselves but it's worth it in terms of yield - great producer of quality buds. I think you'll be good with 10 finalists.

This is the second time Ive grown it out (likewise based on a recommendation Stinky made) and this current grow is doing fantastic. Just started 5th week of flowering and showing great promise already. You've picked a great strain - Enjoy!!