Everything you do opens you up to liability. Say the sale isn't a scam and goes through, you get your money, a shipping company picks up the jeep.

Two months later you are being sued because your jeep was in an accident, the buyer never transferred the title. They got into an accident and are badly injured. You no longer have insurance on the jeep, they are suing you 'the owner' of the vehicle for medical costs. You get to pay a lawyer in PA to represent you and prove you did sell the jeep with the limited information you have on the buyer you've never seen.

Or maybe the guy gets your jeep and turns around and resells it to someone else. He title jumps it to avoid paying any taxes himself, so it appears to the buyer the person selling it was you. The guy you sold it to misrepresents the sale and now the guy he sold it to is suing you.

You just get screwed no matter how it plays out, but most likely you are going to get screwed on the sale itself.