well don't let 3 ney's discourage you from at least checking into it. Just be cautious of everything. Bring a mechanic buddy if you have one to look it over for you, perhaps ask it be taken a look at on a lift by "one of your guys". Also don't be afraid to walk away if you feel like the business practices are looking "shady". Ultimately you have the final say, they are selling the car to YOU.
So go check it out, be cautious and if it works out then you might be getting yourself a good deal.