That's an absolutely beautiful bike you got there, Steve.
Question: While it probably wouldn't be nearly a comfortable as that Corbin ya got on it there, have you considered at all maybe boltin' on one of those bicycle-style single seats that move up and down on small springs?
I'm thinkin' this 'cause with that beautiful retro-style two-tone paint job you have on it and the "mouth organ" tank badge, and now with that very retro tail light, I think that style saddle would look perfect on your bike!