I like the grey look you ended up with. Looks good. If you wanted the plastic chrome look for cheap and in a spray can you can try this. Page 6 if it doesn't take you right there. I know it's a chevy forum, but don't hold that against me...lol. I like all brands and while I am restoring my 63 Dart, I also have a 1960 Bel Air 2dr Sport coupe that is going in next. I haven't tried this yet but plan to soon as I get the car back on its wheels and start the dash.
My '60 classic project - Chevy Message Forum - Restoration and Repair Help
About 1/3 the way down the page he sprays a plastic door panel part. Instead of the rustoleum you apparently can also use mirror finish effects I believe