Hi David,
yes we did corresponded about this before. After your tip I have succesfully contacted Newby for the clutch conversion, and already bought a spare inner chaincase, because it has to be modified a bit for the Newby setup. All parts I modify are done with spare parts from eBay, because I want to keep all the original parts together undamaged. I now have a choice of: Burman box with Conways clutch or Albion box with Newby clutch. It will not be used for racing (but never say never), and it is used in a different frame setup, also with the (600+) engine as stressed member, but not Egli. The swingarm is attached to the frame, not the engine (1.5" behind the Vincent position. The frame bracket F106 is used as normal. The engine plates and connections are roughly ready now for the Burman, I was thinking to make the final product for the Albion too in the same job.
As soon as I have all parts together for test riding I will make some pictures. For the moment the oil tank is a challenge, and so is the front fork.
Cheers,
and keep up the good work with the Flash!