If you have seen the car in person and know that the guy actually has the title for it, then have it checked out by a mechanic and grab for it ASAP. [Just verify that WX3 is on the SPID label to know that it is a real SS.]
If this is internet listing and you have not seen the car in person, BEWARE! There seem to be a lot of scams recently involving very low-priced '96 SS's. Do not send/give anyone that you do not know money for a car until you can put your hands on the car.