She's alive!
I gave up looking for the correct magneto and bought a 12v resistor coil and condenser. Hooked them up today and the motor runs like a top after a minor carb adjustment.
Just need to figure out a place to mount the coil, a proper switch, finish the wiring and get a new coil wire.
Looks like the generator is working. battery was less then 12v before the motor was started and climbed up to 12.5v on a high idle.
I'm hoping to have it drive-able next weekend.