My Bullitt Cargo Build using the Bafang BBSHD bottom bracket motor.
parts on amazon (affiliate links):
http://amzn.to/2AnxPot BBSHD motor-kit
https://amzn.to/2YoYee1 gear sensor
http://amzn.to/2kdHnfy Magura MT5E brake with switch
parts on aliexpress:
http://s.click.aliexpress.com/e/rZRNVzn BBSHD motor-kit
http://s.click.aliexpress.com/e/6imuzrF gear sensor