I know that and so do you.
But not all of us:
A: Have a sweet magneto setup that can pop right on to our bikes.
B: Have the cash for the magneto setup at this moment.
C: Have been able to get all the machining done to adapt a magneto onto
And that is why I am posting this.
My buddy Stuka who runs the Arsehole customs blog in Ireland, (http://arseholecustoms.blogspot.com/ ) sent me this page from Performance Bike and that reminded me about a website I had found that sold hot rod, lightweight batteries... something to get you by until you rob that mag off the Minneapolis Moline in the pasture next to your place...
Use with discretion...