I am thinking of changing my classic grey interior to black, but do not want to undertake carpet removal and installation myself. Has anyone used a shop in the Delaware Valley that they would recommend for carpet replacement and recovering of interior panels?

I have seen first hand Mike of SMC's work on carpets on earlier 911's and I can say it looks great. He does a little bit of everything on Porsche exclusively, not necessarily an interior shop, but I recommend heading up to his shop in Sewell, NJ to see some if his work first hand if you don't find any other recommendations. I'm sure he would be happy to show you around. He probably even has some of the black parts you need. PM me if you can't find his info.

Had them install cayenne headliner.

http://www.futurelineauto.com
Website doesn't say much. But they do many things.

Thanks, I'll give them a call.