I'm in the same boat bro.

My plan is to use two spaces. A 3x3 closet where they'll finish, and a grow cab which will be used to start seeds/clones a few weeks before the flowering room is done, so when its time, they're already established and get put in the closet, veg for a while if needed or just put em right into 12/12. With the right strain, I could be harvesting every 8-10 weeks, depending on how long they veg in the closet. Good luck.