As promised, here are the pics.
It's a solid 7/16" thick total.
3rd pic is of the backing.
Last 2 pics are of the tunnel and heel pad fitment. I know it's sort of hard to tell in a pic, especially being black, but... this is absolutely nothing but just thrown in there. No sitting out in the sun to flatten, no attempt to make it look good or get it exactly right, nothing. And I think it fits great. It's even formed over the exhaust hump under the passenger's seat. They give plenty of extra at the edges to trim off once it's all in place.
If it's only like $45 more, maybe it would be worth it for the mass backing, if you don't have the factory sound deadener in place still.
I hope this helps.
I still have about a dozen boxes like that jam packed full of parts from RockAuto and Summit to install on this car... daunting! I'll get her done and on the road next spring/early summer for sure though :glasses9: