ouch!! that is a sweet kit i have been looking for for many years, and you have it all intact.. pain:)
i'm aircraft/armor, but the lp500 is my favorite car. a few years ago, i found the testors 1/16 lp500 glue bomb from the forsaken place! fiddle with it every now and again, but it's going to be a full out custom build.
if you're not to much into that kit, i would suggest not to open it any further and take it to a show with vendors and see how much you can get for it. you might be able to trade for a few large scale aircraft you want..