P.S. Apart from the pod, which is probably 'home-made', the machine looks fine.
I see it has a Prince 'P-tip' prop, which is a very good prop.
Did it ever have a registration? If not, it has not been through the 'system'.
If it had, you might tell us, if you can.
I'm not sure whether KB-2s were ever approved in the U.K. but it might have been put through as a Bensen.
The pod could be easily replaced with a Bensen-type tow-boom.
In fact, there may be a Bensen-type towboom underneath the pod.
I can see what was probably a gyroglider tow-hitch at the front, and also the
towing wire to the mast is still there.
I have no doubt the RR engineer knew his RRs well, but sone of the fascinations of a gyro are the differences from other flying machines.
Fixed-wingers frequently haven't a clue how gyros work, so get your info from gyro flyers whenever possible.