Anyone here make their own gaskets? I'm thinking if possible it would be better to make my own gaskets (some of them anyway) than to have to wait on an order to come in so I'm wondering what type of material should I be looking for? Would need to be gas/oil possibly heat resistant for sure. I checked at a few auto parts stores and saw there were a few types of material: Cork-Rubber, Karropak, Rubber-Cellulose, Pro-Ramic, Rubber-Fiber...Any thoughts?