A good wheel restorer should be able to do the job. It may be worth looking for one . I would ask in Pistonheads as a lot of people there are " bling happy" and would know of them!
The S1 Aero8 had magnesium alloys.....now THAT is a problem! Real specialised repair needed there.
How about vinyl wrap too? A basic colour to match would cover some marks but not stop a kerbing bash. There are some interesting colour schemes available!
Usually seen on cars owned by youngsters into bling to help the car go faster......
