Thanks man!
Hahaha, I hope not too easy?
Take all the measurements of lengths and positions (Trigger height for the 4AGE and Shaft protrusion of the K Series one)
Check measurements against the dizzy bore in the block.
Strip the dizzys out, setup the 4AGE dizzy between centers in the lathe and machine down the spigot to K size, machine O-ring groove.
Check for shaft protrusion of the K shaft in the 4A housing, machine the shaft or make spacers to suit.
Fit up the sensors and adjust sensor clearance.
...
Profit?
If my rough measurements are correct (no measurement equipment at home) the short tab on the 4A housing will line up with the dizzy clamp bolt hole on the K block. WIN? :yes: