So, by hand, I whipped up six wall pieces, four posts and a 6" tile in relatively short order. I actually really like the end result - the Fat Dragon textures look great once fully assembled into a scene. I screwed up the anti-warp walls, though. I over-thought them, and ended up with the anti-warp piece on the OUTSIDE of the wall, not the INSIDE. Poop.
I'll have to go and redo the walls, but making walls is cheap. I'll try to remember to snap a picture of the simple room to share the progress.