This is on my to do list.
You seem to be able to get replacement covers for £160 ish. Audi ones are 3x that price, which seems insane as they are just moulded plastic. I think (?) D2 ones were actually alloy, so I could understand the price for that. Even £160 seems steep considering , it appears that if I painted my old mirror covers, I'd get the same look.
So, that's what I'm going to do.
Photos to follow when done.