Hello Doc. J,
Excellent thread - thanks for that. I settled on an offset that looked like the OEM setup with 15mil spacer in front and 12mil spacer in back.
The Avant Garde 310 front wheel is a 19 x 8.5 with a 15 offset, so no spacers required. The rear is a 19 x 9.5 with a 22 offset so I'm going with a 10mil spacer.
Who do you use for work on your car locally?
I'm keen to do some auto-x or track driving - can you suggest any local clubs or associations?