Friends, Romans, Countrymen (and women) lend me your beers....

So I have a 1983 Toyota Longbed pick up. I recently had body work done to it and had it painted. I am the second owner and have been fixing this up for some time. It's garaged parked and I take pretty good care of it. As I recently had it painted I am looking for a bed matt to avoid any scratches and then later rust. Having a difficult time locating a mat for this truck and was wondering if anyone here could advise me on how to best address this. Any comments or suggestions would be greatly appreciated.

Much thanks!

Attaching a pic of the truck before I had it painted to give you a better idea as to what I have.