Good to know you all!

Hello people, I have a 76 Dart Sport. I am the second owner , my great uncle being the first. It is a 318 car with the tow package. All stock no mods. It has some rust in the rear quarter panels and a dent from a Deer strike back in the 90’s. My goals are to drive it as much as possible. Fix the rust and dent. Possibly upgrade to four barrel. And I would like to put some 15” s on the rear. Anyone know if stock cop 15” rims will fit my car with out mods?