Gotta give my two cents. Having actually lived in Durant, OK (briefly), I can tell you there are NO palms (look closely at some of those pictures). Durant is a farm community full of very, warm, nice people. I believe this may actually be a scam placed by someone outside of the Durant community. Also, people in Durant would not be afraid to openly list their phone number (strange that it isn't openly listed). Seriously, it is a small community near the OK-TX border. Actually, some folks in North Dallas can get there pretty quick on I-75.
As others pointed out, there is no Zanardi edition in 1995. Now the ad does say that it is open top, but I can give someone the benefit of lacking knowledge of the proper terminology. The mileage isn't an issue, but something is really afoot.
For reference, there is a body shop in OKC that actually is pretty darn good and has quite a bit of experience with aluminum bodied cars. If this is car is indeed a true deal. Ask where it was painted. The only shop capable of doing a first rate job in OK is Mirror Finish.
Overall, I tend to agree with others I think this may very well be a scam.