Tips on buying a 3rd gen Honda Prelude

File: Honda-Prelude_Si-1991-hd.jpg (226KB, 1600x1200px) Image search: [Google]

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What are some of the major things to look out for on this generation of preludes? Also, what is a fair price range for these things?
I found one for sale parked on the side of the road near my college. It's a 1991 Honda Prelude Si. I don't think it's a 4WS model, but it is a Manual transmission. 160,000 miles

I didn't get a chance to inspect it closely, but I did notice quite a bit of rust (and rot) on the body panels behind the rear wheels. But living on the east coast, that's kinda to be expected for a 25 year old car.
Price listed was around 2200 dollars. He says price non negotiable, but would it be a good idea to ask anyways?