Geoff was in when I phoned today. He said that the prototype of the "Kwik-Spoke" machine was fabricated from scratch by a company in the Scottish Borders after he discussed the idea with them. They made two prototypes, one that Geoff still has whilst the other one went to someone in Germany. This means that Geoff doesn't have any engineering drawings or specifications for the machine.
Geoff said that wheel-building is more difficult with "Kwik-Spokes", as unlike conventional spokes if you're not carful they can rotate and fall out. Only when enough spokes are correctly seated and tensioned does falling out become impossible.
I personally have been riding off-road on Geoff's "Kwik-Spoke" wheels for a number of years without having any issues whatsoever.
A machine like Geoff's would need to be precision made. This is because, in order to work accurately the machine needs to cut the spoke to length before the bend is formed. In Geoff's machine both processes are performed in a single action. However, if the spokes could be cut to length first, then a much simpler machine could be designed to just bend them. This could take the form of a die that could fit into a suitable hydraulic of mechanical press.
Whatever method is used the surface of the bends needs to be smooth as any creases or nicks could act as stress-raisers and so potentially lead to metal-fatigue and eventual breakage. Geoff believes that the cold forming of the bends elongates the internal structure of the steel and makes the spokes stronger.