Re: A big Canadian Hello
Welcome to the forum. It might be easier to use a front hub motor. I saw one guy mount the controller on his long fork and mount batteries low in the frame.
You might consider a cyclone system that drives your pedal chain (cyclone-usa.com).
Lastly, you could purchase an e-motor, fab motor mounts, and drive a separate chain and sprocket like a gas motor kit.
“You're only young once, but you can be immature as long as you like" -Unknown