outboard reverse motor for outrigger

so I am curious as to whether there is a geared motor that can be added to one of the wheels of a Voyager kit, like the one Trigg used on there kits. or is that set up available anywhere

I have a older Voyager on a Yamaha Royal Star Venture that my wife rides and was mulling over adding a reverse to it if possible. I can fabricate and build any needed brackets and mounts but would need a geared motor and what ever is used to make contact with the inner wheel or hub on the kit.

Most use a starter motor.

I know a starter motor is what is used, I was more looking for the motor with the proper gear reduction and possibly the brackets and or hardware needed to make it work

as I said I can fabricate pretty much anything but would need the moving parts that make it work