No need to pay his friend for the plane. Unless they 1. have a understanding that if each other crashes each others plane they pay or 2. he took the plane up without asking.
Too bad about the plane. Looks like an ARF? The engine and radio are the things you want to make sure are ok. But I can bet that engine isn't going to run the same again eheh. Who knows though.
Thanks for the pics. I really like the turnip you dug out of the ground, er the engine

That's...in there...somewhere? I assume? hehe.
S