The Fuchs rims that were on the car when I bought it were the wrong offset, and rubbed on the rear inner fenders badly. I was able to score a set of 16” Phone Dials with good Pirelli P7000 rubber for only $150! I sold the Fuchs rims for $550 (not bad, considering I only paid $600 for the whole car!!).
New rear brake pads installed, and now no noises coming from rear of car.