Hey Aaron

I think the W116 and W126 use the same wheels. The offsets for the front should be between 20 to 25mm, and the rear is probably around 12 to 15 mm for your AMG. The fender lips need to be rolled, if not already, on the front. The W126 front is rolled from the factory. You may need to rolled the rear on either cars. Good luck. Sounds like you've found a bargain.