Robyn how did your growing go this year? Were you able to figure something out?
Re-reading your post I just had the craziest idea! You said you are short of space but what about air space? Get 2 ceiling hooks and install a little over 4' apart. Hang a shop light from the hooks then hang a piece of plywood from the same hooks so its lower then the light. The plywood would have to be a little longer then the light so the chains wouldn't get in the way.
