I hope I'm not too late to throw in an opinion.
I"d do one of two things:
Search the junkyards or start a thread in the Wanted section for a set of woodgrain trim in good condition to keep the OEM look
Texture and paint the parts. See the pic below for the finished trim around the shifter:
The trim was formerly the same woodgrain as the dash and seat switch trim. It was cut, fiberglassed, sanded, textured and painted. Although it'* difficult to tell from the pic, the coin holder is original and unpainted and is nearly an exact match to the texture and paint. In person, most people can not tell that the shifter trim is not a GM part. If done properly, the SEM paint products used produce a very hard and durable surface which is not easily scratched ot marked.
For fabric covered trim, I'd worry about the contact cement not holding well... especially around the door lock & handle trim. There'* not a lot of surface in some areas.