Man I wouldn't bother with that stuff. Just cut ya some runners out of wood and glass them over. Cut em out of some 1X4 pine and make em about 1" or so high and round over the edges. That brick mould is too big and blocky and will cause excessive drag, plus you will get better tracking with thinner runners. The other thing is resin ain't gonna stick to vinyl very well and certainly not well enough to just glue it in place with no cloth covering.