rc68rr,
Sounds like your RR is like mine with the D4S interior...
This was my case and for many years I inquired with Legendary about the silver headliner for my car. They make every color under the sun except silver... Many of the 68 RRs I checked just put a black one in because it was just simpler/cheaper way to go. Finally a few years ago at a West Coast show, a Legendary guy talked about this in depth with me and he told me about a place in CA called ACME Auto Headlining Co (Owned by Wile E Coyote???). Anyway I called them and they have/had NOS silver colored material with the correct two-hole-fang pattern. I compared it to my original stuff and it was pretty darn close. Anyway, they also said that they get the request for the silver RR headliners a few times a year. They sewed up one for me and I had a local auto interior professional come out and install it. I live in Virginia and even this guy had heard of ACME. He said that he sees plenty of repro garbage out there (esp GM & Ford) but that this was a quality piece. It went in the car with no problems in about 90 minutes. I bought mine in April 08 and it ran $220 plus shipping. That's about 3 times the usual repro cost but well worth a quality product.
ACME Auto Headlining Co
550 W 16th St
Long Beach CA 90813
800-288-6078
Jim
68 Hemi Road Runner