Poly Vinylester is supposed to be the resin, not the material! So either the guy is lying to you or he doesn't know shit! The material is still fiberglass I believe! And if he meant a different material, then it should be Polyurethane, like Stillen's one! Too bad, you're interested in doing all the combinations, because if you're interested in the Veilside body kit, I can get you the whole set for only $500! Later!