Cleared a couple more hurdles.
Firstly managed to come up with the rare single outlet breather
Carburetors threw a real curve upon digging them out of a box to prepare. The Right body throttle shaft was quite a mess with a off center attempt to drill out the butterfly screws.. Gggary really saved my butt digging a shaft out of a scrap set for me. And that process went well.
So the carbs are clean and nice inside with new Mikuni jets. I took a tuning estimate and went with 1 size up on pilots, 2 sizes up on mains, jet needle dropped one click.
Eyeball synced and ready as can be for a try someday.