I had a reputable wheel repair shop (mobile) come out and work on one of my 220Ms that I lightly curbed. They re-machined the lip. It was $150 for the repair.
Unfortunately I cannot recommend this type of wheel repair; it is always noticeable to me where it was performed and does not match the OEM finish.
If I had to do it over again I would either use a $25 wheel repair kit and accept the mediocre results vs. the price or I would buy an entirely new wheel, you can get 359Ms at a decent discount.