That's not an easy bike to find in "all original survivor condition" There are a lot of collectors on here and a lot of bikes and I can't think of anyone offhand that has a perfect example or even a completely restored example.
Iron horse looked for years and I'm not sure he ever found one.
NJMike might have one...I sold him a roller a few years ago..... but a complete all original survivor with original seat, sissy bar, sissy pad, disc brake, front wheel, and a nice straight frame??
Can't tell you what to do, but if that was the bike I was after I would give it some more thought.