agree - chrome does not look "natural" on 986 wheels (or 987s IMNSHO).
If you really want them re-done, I'd look into more local options. There is a guy in Evans City, PA (1hr north of Pittsburgh) who is well know for doing excellent chrome work - especially restorations of older cars. I used him a long time ago. The shop looks like it could use a make over but the quality of work is top notch.
Paul's Chrome Plating, Inc.
90 Pattison Street
Evans City, PA 16033
(800)245-8679
http://www.paulschrome.com/