I also want to do what you are talking about. The switch you referenced will mount on top of a early v8 starter. Newer starter have the linkage the pushes the bendix inside the casting of the starter head. The solenoid bolts to the starter head. Older starters the bendix lever sticks out and the solenoid bolts to the starter motor case.
My plan was to use old type start mount the switch your talking about on that starter in place of the solenoid and make linkage to connect the stompper to the external bendix lever which will push the switch and run the starter after the bendix is engaged.
Not really around to implementing yet but thinking that the cross shaft from the stopper will bolt to the bell housing bolts.
Goal is to work like the six cylinder did with a v8.
