I have changed my mind again.
I am going with rotary intake.
I have started to make the first plate on which the rotary valve will sit.
And I have been gifted a 21mm carb by a friend. Not sure if I am gonna start with this on because on the intake ther should fit a 26mm or 28mm pwk carb.
I have made some images of the work so far.the duration of the rotary disc isn't the final one and I've made a custom rotor for the ignition that is smaller.