David
I'm 99.9% sure this is the bike Kurt built as a copy of mine. It has the same small exhaust on a length of flexible pipe, wide bars, Honda fully sprung single seat, tank bag with map pocket, "Bantam" gaiters & shaped "bash plate" etc.
The real cruncher though is the "Ammo" pouch for tools by the F106, one of the bits I gave Kurt.
This picture shows the bike with rear suspension, mine ran with or without rear suspension and with other changes depending upon what class I was competing in. Make that 100%, although I always had a gear lever!