A good body shop will put you onto a reputable outfit. In the UK the best bodyshops are Porsche approved.

I don't know how bad the scuff is, however my father had miracles performed on his 996 Sport Design 2 18" wheels. These are a two piece wheel with a polished rim, supposedly unrepairable. They were badly scuffed when someone at his office put the car through a track-type car wash as a favour(!) and the track ground the whole rim about 2.5mm deep all the way round. Now, you would never tell. Cost the equivalent of $120 per wheel and the car was off the road for 2 days.

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JJ Rodger
2013 G350 Bluetec
1999 SL 500
1993 E300 diesel T
1990 190