The solution: foam core walls. We're talking rather large pieces of foam more - 48"x96"x1/4" to be exact. With two of these, I was able to cover up the majority of one side of my room so that with the right lens, I can actually take full body shots. I'll just need to get one more of these (and perhaps some glass?) to create the floor and I'll be all set.
To test this all out, my friends Andrea and Michelle came by to test the studio setup. Lighting consisted mainly of a Fancier 300w (softboxed), a Sunpak 120J (white umbrellaed), and two Sunpak 383s to rim.
Enjoy!
Andrea:
Michelle: