Hello Dreamer! Engine and frame numbers won't match. You can make your own wiring harness if you can differentiate between the colors of yours (hope its not melted too much). I've bought keys for Hondas on Ebay for near nothing.
A good locksmith should easily be able to make a new key for your ignition. I think they have numbers on the cylinders that correspond to how the keys are cut to match - right guys? Ebay and Craigslist are your friends. There are plenty of suggestions on where to find parts here on the forum so get readin !