here are pics of the carpet I got from treasurecoast miata.
was nowhere near this clean, just washed it. also had to trim some fuzz

 

looks good though.

 

yep, was pretty happy with the it

 

I would look into using Frost King insulation under the carpet instead of the spray rubber. It is aluminum foil tape backed with thin foam and adhesive. It comes in 12inch by 15foot rolls at Home Depot and Lowes and is quite easy to work with. It will be a better thermal barrier than the rubber and will provide good acoustical insulative properties. There also won't be any overspray or troublesome cleanup. Just degrease the area with denatured alcohol or some other solvent beforehand and it will stick well forever, but peel up if you ever need it to.

 

Thats funny because.... i have it already.. got four rolls. What do you think about doing a double layer of it?

 

double layered the floor pan and triple on tranny trouble. fixed the hot foot issue.

Frost king foam insulation from lowes worked great

 

from tan to black