Those kind of deals always make me suspicious. If you did get your offer accepted, I would try to check around to see if anyone had that kind of jet stolen. It doesn't make sense to me why someone would price is so low that they are sure to leave $100s on the table. Even the offers above asking price are lower than what could be obtained with proper pricing. Maybe he is going though a divorce and needs to liquidate fast . I have seen that situation before.