I have the first mag issue of this build, and it was called the AZ because every part from a-z was modified. I will have to dig out the article but from what I remember. The frame is a champion, tank is Don Jones, pipe is Don Jones, Engine is from a DT1CMX, Forks are ceriani and lowers were turned on a lathe to lighten, Ignition is something special too. I dont have all the issues of the mag with the full build but it is very step by step. I will have to see if I can get it scanned and posted.
If I remember correctly Barry Watkins built the bike and wrote the article detailing its build.
Needless to say at 193lbs this bike was very trick for 1971.
Hope this helps,