Joe Torma's page has been reposted so many times that it's probably (or should be) considered public domain.
I would just give credit where credit is due and offer to remove if the author requests. (I see that it has been posted already. I don't think he minds.)
Edit - I believe the updated chart is incorrect in several areas, regarding the stock wheels.
1. The 14" "high tech" wheels are all 14x6 - Base, SE, Indy, and 85 GT. (Joe Torma's chart shows them to be 35mm offset.)
2. The lace wheels are either 15x7, with 30mm offset; or 15x6 for the 88 front, only. (Joe's chart shows the 15x6 offset to be 37mm.)
I am inclined to believe Joe's chart. Many people contributed to the information contained there. It was pretty much "beat to death", and corrections made on an ongoing basis.