Hi Colin, really
GREAT work !!
mine looked like this when I found her:
I didn't want to spend a lot of time (and money..) but finally I did and actually it looks like this:
Anyhow, it is my very own interpretation of a powerful 50cc street racer.
Unfortunately I do not have the rubber for the speedometer your are looking for, parts for this bike are pretty hard to find.
Greets, Petr