[lgroulx200]

Hi,
Just an idea. Build a torson box with a foam core. You would only need to match cut the top and bottom skins and sides. Glue together with foam in the middle. This will provide a very stiff torson box that is easy and cheap to build.

You could then match cut and drill the torsion box ends. The holes would be for the pipe rails.

For the pipe supports, you could cut a couple of full length pieces of MDF cut on a angle glued and screwed sandwiched between the pipe. See the attached drawing.

Larry