Shawn, nice big shadehouse congratulations, and you say you might go back and buy one more? Wow!
Not sure if you are doing so already, but maybe in your mini shade house and others, you can also consider hanging some plants too, to really maximize space. Assuming that you are not yet doing this already and that the plants are only on the ground level.
Man if I only lived in the suburbs!
TTFN
Arvin