Federally registered or non registered plant count (4?)?
I would probably do a multi tier perpetual setup with a dual plant scrog, so you can harvest one larger 8 sq ft plant every month.
Partition the top or bottom 1/3 of the tent by building a sealed off shelf, so you have an area to veg the newest plants that will immediately replace the harvested ones. Unless you have a spare veg tent/area.
You could keep a somewhat bonsai mother plant going (plant #1).
Have a phat branch being air layer cloned from the mom (doesn't count as a plant until you cut it away! You could have 20-1000 clones or more and still only count as one plant until you cut them away, thanks to the grey area of the law..)
A vegging plant right beside mom, ready to replace the oldest plant in flower (plant number 2).
And the 2 out of your 4 remaining plants staggered in the flower partition of the tent, scrogged flat as pancakes to make up for the lost height.
Every month you would be harvesting one, and replacing it with the vegging plant, which is replaced with the new air layered clone (have 2 in case), which is replaced with a fresh air layer, and so on and so forth....