Has anyone got a bulk rubber sheet like used in horse stalls, pond liner etc., and used a heat gun to mold it to the floor themselves? Asking since I am not sure how thick of material will both be strong and then malleable with a heat gun. Found some really cool looking diamond plate mat that comes in many thicknesses still cheaper than buying a molded one from LMC etc. Haven’t done this myself with rubber but in every car I’ve done I bought bulk carpet and laid it out myself as I can’t really justify spending extra money for a couple hours worth of work. Plus the job usually comes out looking better with a better fit in my experience anyways.