Sound deadening, Carpet, and floor pan repair questions

Dynamat seems awful nice but I don't think I can justify $300+ for 36 sq. feet when I want to cover the entire floor, firewall, doors, kickpanels, etc. I'm trying to cut down as much noise and heat in the cab as possible and their prices are just absurd. Will definitely check out noico. thank you

There are other brands too. Just make sure you get the butyl stuff, not the stuff made out of roofing tar.