I saw a china made keihen type repop single cylinder carb, it looked just like the top of a 4 cable 750 carb. I can't help but wonder it there are cheap carbs that could be robbed for parts for our use? They're cheap enough, not sure if there is any quality, but food for thought.
Who knows a guy might be able to built faux K0 carbs. (I know, just like my fabricated 9 hole sandcast clutch covers, Dancing with the devil) lol.