The thing I'm not convinced about is re-using the front triangle. I would use an ebike a lot for shopping and other short trips where I otherwise would use a car. I would really like to use one of the bafang mid-drive motors with a mount built into the frame, but the only mount you can buy (that I know of) is aluminum and I need steel. And buying the shimano motors would be fine, but seems too complicated.
I want to have the mount for the bafang laser cut, but finding a good drawing of it is a problem