I'm going to be replacing the liner on my old Grandby in the next few months and was wandering if I made it myself,what kind of vinyl would I use..I been doing a little research and found this place that sells about any kind of material you would want,but I'm not really sure what to go with..I was even thinking about silnylon,tent like material,but I don't think I want it that thin.. http://www.seattlefabrics.com/products.html