No Max, as explained to Railbender, I have'nt measured the chain. I don't have a micrometer, and I doubt if I could reliaby extrapolate from a ruler a correct length. I'm just waiting to see what Suzuki, Ek, and Regina say. My supposition is that the Regina was the correct length, and that the EK and DID were not.
As to your half-link and cotterpin - I would really like to see a picture of that ...
Thanks for your insight.