F body rear seatbelt mounting

Well, we found that the floor around the outer rear seat belt (right side) bolt rusted out......its goofy....the metal right AROUND the plate, save for a quarter inch border, is perfect....still body color etc....that is looking at it from the wheel well too.

Does anyone know if there is any sort of patch produced for this area?

I am guessing not, so I guess the fix is either find a donor car with that area in tact , cut it out and weld it in....or build something from scratch...

Since it...

F body rear seatbelt mounting
Author: shadango