It sounds like he bought it as a parts car, hence too much $$$ to fix or its high mileage.
You're not too far from Knoxville, TN. There's a nice red XR2 reasonably priced on CL. There's also a low milage black 94 NA auto for $500 I'd like to get my hands on. It just needs a timing belt. I just need $$$, lol.
There's a cherry garage kept silver 91 XR2 in Nashville,TN with 56,000?. He's asking a high price. $3800. But if you figure parts and time you'll surpass $3800,
What ever you go after there are so many with less than a 100k on the odometer because for many these were summer cars. Find you a low mileage one. Try to find out if it has all the head gasket, timing belt, and water pump recently replaced to save some $$$. I think these have 60k head gaskets but can last to around 100k. So them questions come into play. A compression check prior to purchase is a wise idea. Look for clues for an overheat like has the radiator been changed. Factory had plastic tops and bottoms. Replacements the owner usually buys an all metal one.
Good luck finding the right one.