After being unable to find a cabinet JUST the right size for this nook in my closet, I'm going to take it upon myself to build a grow box on my own. As far as total clearance, I have something like this to work with: 20" (L) x 24" (W) x 48" (H) That's about the maximum space I could dedicate to a project like this. My question is -- do you think that's adequate space for two plants? If you guys think it might be a squeeze, I'm more likely to just narrow the box down a bit and stick with a single plant. Subtracting a foot for light fixtures and the pot, I'm hoping to get two three-foot girls out of this. Also, thoughts on mounting lights on the sides as they grow? Feel like it's something that'd require minimal extra effort for significantly greater yield. Assuming I have about 150W per plant altogether, does it matter where its coming from so long as the plant is getting light? Many thanks.