I ripped up the carpet/insulation today and will have to replace it but first i wanted to cover the floor and wheel wells with this stuff from www.mcmastercarr.com p# 9709T19 Hoping to get some better sound from the stereo as well as have less road noise and a more "solid" feeling all around. Wondering who has used it and: 1.How much to cover the entire floor/wheel wells 2. How is this stuff compared to dynamat? - besides cheaper 3. Do i need a special roller tool to propery instal it or can I just press it down with my hands? Thanks.