Guys just so you know I am live and well, I just have been looking into and taking advice given here about the fabrics and requesting samples. A few issues I have come to with some of the fabric samples received so far, is weight, resistance properties, price, and flexibility. With a few fabrics I have received, I wanted to use them but ended up finding out that they are not UV resistant, or not fire resistant.
Here is what I have sampled so far and any issues:
Sunbrella - Great stuff, just $$$
2.2oz coated nylon ripstop - Seems too thin/light
Coated Oxford - Not UV resistant
Packcloth - definitely too "loose" of a weave
Cordura - Seems much to heavy and hard to fold for tucking.
Waiting for samples of:
Odyssey III
Surlast
Haven't tried yet:
PolyCotton
Waxed Cotton
FWC fabric
Heavy Canvas (seems to be compare with Cordura?)
Update on the Camper shell. I cut it. Well to be more precise, I had to cut a portion of the main shell to add 0.75x1.75 solid aluminum 6061 bar. This is for the overhang above the cab. I could see it sagging just enough after putting all my weight on it to annoy me.