I'm guessing you mean a head nut, rather than the bolt. And I'm sure you've learned now to put a rag over the open case until all the bits are in their place and ready to re-assemble.
Anyway, give us a detailed description of what's happening. For example trying to rotate the engine with the plug in or out, the clutch engaged or disengaged etc.
Yes, it would be great if there were someone local to you to help out. Check your local craigslist to see if someone is selling kits or completed bikes.
with any luck there is nothing major wrong.