Returning to civilization I discover the local bike shop has a few classics on display, so I went for a look before going home. The road registrable CR500 belongs to the shop owner Rob, the rest are his fathers Cyril ( Founder of Gladstone Motorcycle's ). Had a nice chat with Cyril for an hour or so, very interesting bloke. The 2 SR500 racers are highly modified. The tanks were had made in the U.K. Cyril machined the foot pegs & gear changes himself + the seats, bar the upholstery. These things are absolutely mint, and I mean mint condition. All in running order too. He felt it was a waste keeping them in the shed under a sheet so are now in the shop for all to enjoy seeing.
Turns out Cyril is from Bulawayo in Zimbabwe where my wife went to College. Small world. Top bloke.