RE: WHICH FABRIC COVERING????
Check out Ceconite (just Google it) for a source of polyester fabric as good or better than any of the afore mentioned ones. Use the lightest grade. You do have to use a seperate adhesive and you do have to paint (dope) it but it makes a beautiful finish. Plus, it is much more economical and comes in just about any length you want and is (if I remember correctly) five foot wide. It does shrink a lot so you need to either (or both) have strong structure and control the heat when shrinking it. The lightest weight is about 3/4 oz. square yard.