1966/67 Bucket Seat Metal Backs - Anyone restored them?

Bought new seat covers for my 1967 bucket seats (Pearl White) but the donor seats I'm using were from a black car. Has anyone had any luck restoring the metal seat backs? Looks like a thin vinyl might have originally been applied. Wondering if anyone has replaced the vinyl or what other options there are?

My backs do have some nicks in the vinyl so simply dying them is probably not an option.