Interior and Upholstery Looking for new seat belts for my 92 convertible

Hi, I'm doing an interior refresh and color change on my 92 convertible- going from titanium gray to black. I'm running into trouble trying to find replacement seat belts (the original gray units are looking real bad. LMR has units that go up to 89. Are the 1992 cars that different that the older belts won't work?

Any other ideas on sources?

Thanks, -David