im,
Hope all is well. I would recommend Integrity Auto, they opened up a new shop on Rt. 100. Here is their link:
http://www.myiauto.com/
They are excellent and honest. He has work don 928s before and they work on my cars when I am too lazy to do it myself.
Don't know anybody in the Philly area.
Lets get together this spring/summer for a round.
Glen