I'd give Martins AF Products a try. I haven't been disappointed with anything that I've purchased from him. Coat them with some of his mint rims and the dust should wipe right off.
2009 E92 M3 /// Melbourne Red /// Fox Red /// M DKG
Full Innotech Exhaust - DINAN Intake - IND Engine Bay Appearance - IND Hand Stitched Boot Covers - and much more....