Defo a write off bud! Quite possibly got a lot of internal engine damage too! As soon as the pulley's get touched, you can put money on them being bent and the engine would have been at least running for a few seconds after impact. It is also a jig job, which add's a fair bit of dough onto the cost of repair. Unless your minted and wanted to pay for the job yourself, say good bye to it.
Just hope your ok, but i'm sure you are.