I think you are over the hump. I have a low mileage 2002. It was taken care of by the previous owner at the dealership. Between 62,000 miles, and 72,000 miles I have done filters, belts & pulleys, cooling system, brake fluid, replaced the disa, fcabs, plus regular stuff (oil, tires, battery (lol lasted 7 years)). Next is head gasket and beisan stuff and then suspension. If you spent four thousand dollars you should have an almost perfect car.
I am wondering why you want a different car. You seem to have liked it enough to treat it right. Since I don't mod I hope for a two year grace period soon.