Tx! Here’s what I suggest. I didn’t see the red tubs at my online Costco, so subbed in the yellow ones for dimensions.
3 tubs, turned sideways, with a U of walking space around them. Since you mentioned needing to keep your plants short, you’ll be wanting easy access to tend them. This allows that, and puts everything within easy reach. If it’s easy, most people do a better job and thus get better results. Fans could be set in room corners, and anything that takes floor space could go at the walls on the ends of the two dead-end pathways.
