G102 Club III Brake replacement

MGSA's G102 is in need of new brake system--or rebuild for old one. I
have emailed Linder for for info, part numbers, etc,no response so
far. I am told it is a BMW motorcycle brake, from Magura.
I am located in the Atlanta, Georgia, USA, and have sources for BMW
motorcycle parts.

The master cylinder is back behind the seat pan, and not easy to get
to--anybody know any tricks to make it easier?

I would really like the BMW or Magura part numbers, or the the Bike
model, if anyone knows them. Otherwise, I'll have to disassemble and
measure. Being able to remove and replace same day would be nice.

Thanks in advance

Hartley Falbaum
"KF" USA