Nice job on this and all your conversions. You "cheat" because you received an EE before you became "e"conscious. I'm in my 11th year (AFAICR). My first e-bike, a conversion with a Dillenger front hub kit was about 11 years ago. The motor (and essentially battery since they replaced two earlier short-lived ones after about the first and second years) still resides on my daughter's cruiser (even after two or three trips to Burning Man).

Then

Now