I put together this diagram to illustrate what I am thinking about for a stage. The hoop is attached via the brackets, and can pivot. The brackets allow you to adust the height, so that you can center the hoop to the height of your subject.

By keeping the back of your camera tight to the hoop, you can shoot all the way around horizontally and vertically. If you are really motivated, you could even make a bracket to attach the camera to the hoop via the tripod mount on your camera.

As far as the lighting goes, you will need to construct a light tent and have at least 4 lights. Unless you are planning on shooting highly reflective objects the camera can be inside the tent.

If any of this is confussing, say so, and I will elaborate more.