Jim, here is a link for Plastic Rechroming Service.
http://www.laysons.com/html.cfm?html/services.html
I havent used them or know anyone who has.
The reproductions are not good enough to pass the muster with most clubs or shows without deducts. I know other members have had dashs replated with good results. Dont have info on who they used to do it.
Good Luck, Rick