I agree, replace the plane. It's just courtesy and it will insure that the same person will be eager to help in the future should you ever need it.

Now, as for the crash... sorry to hear about it. A crash can deflate you pretty quick and ruin an otherwise perfect day. Everyone has been there and likely will again.

The key is to learn from it. This is hard to convey in a written forum but I mean this in a very constructive, helpful way... Maybe a couple crashes close together like that is an indicator that you should slow down and concentrate on the basics. I know it's easy to get bored when things really go well but you can get sucked into a false sense of confidence. I know because I've been there. I would honestly leave that Dolhpin in the box and buy two Avistars. One to replace your buddy's and one to fly. It may not seem like the cool thing to do but it will pay big dividends in the long run.