I have a potential motor I can get for around $550 that should work in my bike. I'm not clear on the history or condition of that motor yet but I'm looking into it.
The idea of rebuilding a motor sounds like a huge task for someone like me who has never taken an engine apart before. My first thought is that it could be a potential disaster...
Either way... I'm taking your advice and taking the bike apart a bit this weekend to do some diagnosing of the issue... and I'm guessing I'll have to see from there. The noise it was making was just awful and my sense is that it just SOUNDED expensive....