I'm close to the US border so I can, hopefully, have it shipped to a forwarder at the US border for me to pickup.

Regarding the US and Metric readings I found a video that states that the display can cycle US and Metric  readings.

https://radpowerbikes.zendesk.com/hc/en-us/articles/115000956034-LCD-Display-Features-and-Operation

Anyone know what the difference between the LCD Display Upgrade for sale on the Canadian website and the one for sale on the US website?

The Cdn site is out of stock and the US has stock so if the unit system is the only difference  (US and Metric) then I would buy the US display.