I've found the FFR floor mats very durable. Multiple seasons of driving with no visible wear where my heel sits by the accelerator. I have, however, found the Factory Supply carpeting quite susceptible to wear in that area. For all of my builds, I've glued and stitched a protective piece on the side of the tunnel. For my 20th Anniversary Roadster, shown here:
https://thefactoryfiveforum.com/show...l=1#post267440. I bought several pads from here and has been enough for multiple builds:
https://heelpadwarehouse.com/. Lots of other sources.
If you want to cover the complete floor mat, there are multiple choices for large plastic mats you can cut to fit. Look for truck sizes. I've done that before for DD's.