The good news is, it's an outboard. You should have it changed out in no time.
The bad news, I have no clue where to locate one at a decent price. I assume that you're posting here, because price is an issue. If not, you could go to any marina and get one new.
Try Billsreef, in another life he used to fix boats. I wouldn't be surprised if he still has a few connections to the right people.