Thanks for the welcome
Ya, that intro was a bit heavy on the philosophy, i think how to keep your vw alive
had a larger impact on me than it should have. (You have to read the book to understand-- Amazon.com: How to Keep Your Volkswagen Alive 19 Ed: A Manual of Step-by-Step Procedures for the Compleat Idiot (9781566913102): John Muir, Tosh Gregg, Peter Aschwanden: Books
The attached pic is kind of what I'm thinking
the scale is probably off by a bit and the bike I drew it on does not have a derailleur but that is the idea. I think it would be less complex than a jack shaft shift kit and save some weight. I imagine the carb will be turned to the side not strait ahead and the motor mount system will be messy but at this point it is a theoretical exercise.
thanks for the ideas on the friction drive as well