Thanks for your reply.

As I am a novice, I was leaning toward the ebikeling front tire kit for a fat bike. I have been assuming this would result in the least amount of "stock" parts removal. I assume this would still allow me to pedal manually?

Also, there is a youtube video of a guy installing a mid-drive on a Fatboy and if I understood him correctly, he was not able to use all of the gears on the back wheel.