Your bike looks very special, and highly desirable with a twin cylinder boxer engine.
I just wished that such a bike and engine combination were legal in Australia.
The ultimate dream machine would be a boxer engine fitted with a modified Sick Bike Parts shift kit.
Yes the marmen is a variation of the same engine(an improved version). However this was the only one available to me, I would much rather have had the Marmen or Monark super twin version, but this is what I've got!