Not a lot of action tonight.Ended up working late.
I did go by the buddies house and pick up the 20 ga shells
Pretty straight forward,just cut off the plastic casing,sanded a piece of wood to fit and give it a nice drink of CA glue

Then it was just drill the holes for the pot shafts and push them on.Nice and tight too
Hmmm,i see my switch tip is crooked,we will have to make sure that is fixed