Craig
On my MC21 road to race bike, I simply cut the clocks in half with a hacksaw to seperate the speedo/light cluster from the rev counter. If you take your time, cutting around the rev counter and leave as many mounting lugs as you can, it looks very neat and is almost as good as the HRC part.
I do have an F3 bracket for the rev counter I can sell if you really want one.
Cheers
Dan