The rears are almost exactly 4" offset from the inside lip. The barrels are 5 1/2" out and 4" in (this is to the inside of the lip).
The fronts are 2 1/2" out and 5 1/2" in (inside of lip). The offset is about 4 3/4" from the inside lip.
Thats about all the help I can offer. Wheels were not my strong suit at Patrick Motorsports, I ordered everything from Alan. I know these came off a wide bodied Carrera 911, NOT a 930. So they should work for you.
The photos are of the rears and then the fronts.
