I am only hoping to achieve two separate flower areas to have a stagarded harvest every four weeks or so. All contained in this one cabinet. I know limiting the vertical will be difficult, but with low profile lighting such as qboards or strips i hope to conserve the headspace as much as possible. As for container size, i don't grow hydro. Current 3 gal fabric pots i use are only 10" high. I'm guessing I'll end up with 20" for plant growth. This would mean lots of training in veg and probably implementing a scrog net. It would also mean smaller, multiple plants vs one large. Figuring on four plants per 2.5'x3' flower area. Topped, spread canopy to fill the footprint. It's all a theory and probably will be problematic, but my end goal is a single, self-contained perpetual cabinet. I've been using multiple tents for the past couple years and realized i could possibly scale it back a little and get what i need from it.