Many people approach me about the trunks i have on my bike so quick tip number 2
Use a Scooter trunk found at your local scooter shop or Swap shop or Online
as a stylish yet affordable locking trunck for your bike.
Cost - anywhere from $15 to $35 or so per box... depending of course on the style, make, model of the one you want.
They come in a variety of styles and colors and are easily mounted to either post rack or standard rack systems.
Shown first is a larger trunck box with a base mounted on my Silver e-bike's post mount rack.
another is the Black slim line model i put on my standard bike which has a standard rack sytem.