As a second-to-last resort cut through the hinges, then either carefully slice them out of the structure and replace them, or just put new hinges in next to the ones you've got.
If there's a club nearby join it now. Folks will want to see you flying, and will help you out. With luck, you may even be able to buy someone's plane all ready to fly, or needing just an engine (i.e., a lot more 'almost ready to fly' than an ARF that you'd get from Brodaks). Or, if you've got the pocketbook for it, buy and ARF and have someone assemble it for you.