I also had scratches and wear in my tan interior, I gutted it and used SEM color coat paint to re-do it all. It came out great and has held up for 6 months so far.
I simply scuffed it with the green Scotch-brite pads, cleaned it really good with some Dawn dishwashing detergent. I then sprayed on a few coats of adhesion promoter(this is crucial), followed that up with the SEM paint. Let it all dry overnight an reassembled. Altogether it was about an 8 hr job but fairly easy to do, the worst part was scuffing and cleaning.