It was what other people told me--and the more I asked around the more confused I got. The best info so far is a 45 offset on the 15x7 --but it was
qualified by " you may have roll or cut the lip on the fenders for clearance" and since I am trying to avoid that if possible---hence the thread looking for the definitive answer from some one who has been there. So maybe we will get an answer after this weekend.