Call me- 559-338-0846 559-304-3577. Dale Lineweaver is the HusaGuru from what I'm told. He may have a motor (or parts). When I had to tear into mine I was heading in that direction. Imagine...
10% more ponies, 7-10% more torque, Honda-like reliability (using that term loosely) all in a bike with what, 250# dry weight? And street legal. I've just never actually conversed w/ Dale and my motor's fine for now.
Find a XR650R motor at the m.c. salvage and bolting in a REAL chasis/WP susp/Brembo etc.
But really, we can get it going and it sounds like you have no choice.
ps- can't help you with the rock for the wifey