Anyone knows this bike?

I think it came to Canada from 0regon. It's 1981 A3. I has a few modifications, so I am sure the previous owner knew more than basics about KZ1300. Including clutch conversion, Pingel tap, manual cam tensioner, different coils, and a few other things going on which I'd like to talk about. Plus - the story of this bike.

I'd like to find out more about this bike, whatever the previous owner could fill me in. Plus some technical stuff regarding modifications made.