Here is the bare rotating platform. It is framed and covered with 1/2" plywood. It separates into four equal sections.

The platform has leaves so that it can be opened and disassembled with nuts and bolts.

We framed the walls on the rotating platform and doors were mounted as well. The walls are not to code, but they'll do.

Rigid foam is covering the top half of the wall and 1/8" masonite is covering the bottom of the exterior wall. Bricks are being sculpted into the foam with a utility knife.