Ah just got around to getting photos ready to share
Here's the bike I've been scooting around on the past couple of years. Its various breakdowns from cylinder flooding to the chain tensioner bending the wheel all out of whack have taught me a lot.
As for the BTR project, I'm using Inventor to model up the frame before I start cutting and grinding. I'm designing around using a predator 212 engine, which is about the most power for the lowest cost I can get right now. Future builds will probably use more expensive, better looking engines.
Anyways, here's the frame model so far.
Sorry they're links rather than embedded images, I couldn't figure out how to get flickr to embed them.