Danny Springs starter motor

As I can't find the original site for Danny Springs adapter kits, does anyone know the original application or manufacturer and part number of the Japanese starter that Danny used in the kit for adapting a 700r4 to the Hornet. The part number was removed before it was added to the kit.

The Bendix apparently hung-up in the ring gear, over-ran the starter-motor and dislodged the ring gear from the flywheel.