If you are trying to return original shine and not just coat it with a shiny patina product I would carefully follow the steps you proposed but before adding the ceramic I would by hand, not with a buffer, test some spots with a something like Turtle Wax Color Magic Color Restorer. They make one specifically for red paint. The wax/polish has red color in it. There are other brand color match waxes out there.
Last edited by dgrinnan; 01/17/2024 2:26 PM.