Many thanks for reply! Yeah really want a folding one to do it up as a folding touring type bike. If you've got the time put up info about the work you're doing on your ones as there's loads of info on the web about people doing up raleigh 20 bikes but not so much on the kingpin.
True, the Kingpin doesn't seem as popular as the Raliegh Twenty, I found very little about them when I looked. My project is pure folly, and it started off with me hitting the bin on
eBay for the blue bike you see on the left in my avatar.
Thus far I have bought two more bikes as doner bikes for parts. I have taken the blue bike apart and sent the frame and forks to Mercian for a respray and re-logo. Now I have to clean all the other parts up and reassemble, which I plan to do over the next two months or so.
As I said keep an eye on eBay because the folders come up a lot there, more than the non folders.
As a matter of interest why have you decided on a Kingpin for your project?