SC it is a manufactured tear designed by us, if you look through the album you will see picture of MM #1. Nancy designed the galley cabinetry and I found and sent the company many of the bits i.e. lights, graphics, solar controller, that went into it. The story is on http://tnttt.com/viewtopic.php?t=33634
The side tarps are modified Kelty Car tarps with their poles, the rear tarp is a custom tarp made by Paha Que and a couple of paint roller extension poles with a stainless bolts screwed into the end (drilled and tapped.) The shape of the tarps is Hexagonal 6' wide at the tear (for all three) and the rear tarp is 14' wide at its widest and 14' long the Kelty tarps are smaller and the material not as heavy.
The advantage is that they can be fully stretched out or the end dropped for heavy weather. CR has Kedar/awning rail on three sides.