[Packy]

Find out what your time limit is to file a complaint with ebay and Paypal then tell him professionally that if you don't get the engine a few days before that date you will have to file a claim against him to cover your @ss. Be careful with your words though as you don't want to piss him off. He could easily sabotage the motor. Make sure he sees the situation through your eyes. Document as much as you can through email communication. Also, make sure he stated what the delivery methods were going to be and you covered all those options.