993's should be more expensive than 3.2's, 3.2's more than SC's, SC's more expensive than middies, and then we run into longhoods...all things being equal, which they never are
Make sure your car is extensively checked out. Make sure. A 993 manual C2 coupe is a desirable car, at least to me. The mileage and maintenance are the keys to your purchase. I don't care what model you're buying. At 115K miles, I want the best verification and assurances I can muster. Could be great, or not.
Good luck. A 95 manual C2 coupe? Yummy.