Eric-
Yes you are right it does have a 4.3L V8. I really just met the man over the phone and all I know for now is that he is not the original owner, the car is a blue or tan (I forgot) but he states that it looks lavender and has a black(?) front portion of the roof and hood. I did not see the car personally so I can't comment on much more. He also said that the car does not have Somerset emblems on it and that it has the plush velour interior.
Are there any trunk codes or any other codes I could use to help him find out what he has?