Sounds like a nice deal.
If you want the smooth ride that the car had when new. you're stuck getting something like the original Goodyear Eagle GA's. Not cheap.Goodyear Invicta GA's are a good, not expensive substitute, if you want the soft, quiet ride. I use BFG Touring TA's (149 mph speed rating) on our '92 and am quite happy with them, though they are not quiet or smooth as the originals. They handle much better, though and are M+S rated.
Check Tire Connection. They have loads of owner reviews available for all kinds of tires. Also check Consumer Reports.