7 plants 2 tents

Toss a coin for each plant. If you don't like result - that means you know where exactly you want to place that plant.

self-inflicted problem. Since it seems unlikely you can fit all the photos into the large tent, i'd run them all on a 12/12 schedule. As long as your DLI is proper, it won't make a difference to the results of the autoflower. take clones like you normall would. With that many plants and that small of a space, you likely need to take clones i flower phase or else your plants will be much too large when tehy go into flower and will be serverely overcrowded. Take extra clones due to slightly reduced probability of a cutting rooting when it also has to re-vege, too.