1975 Cb750F Throttle assembly

[lcochran]

Im looking for a throttle assembly, w/ starter button and kill switch with all harnesses intact.  My start button broke and have been using kick for a week.  If any of you folks have an original/replacement/ or an alternative thats known to work RSVP.
Also, converted to clubman bars and i'm now in need of a front brake master cylinder assembly that mounts horizontally flush.  Any ideas?

[Re-run]

Cant help on the master as I have never done a cafe. The button though is available, just hard to find.
Partsnmore.com looks to have it for $6