We have had Kiwi friends do this a couple of times and it didn't seem to be a big thing. In both cases they started in Canada and then toured to the US. Both vehicles were purchased in Canada and sold here in the US before the kids returned home. Their travels were more or less their OEs although the guys were on work visas.
I can have the DW(darling wife) contact them and see if it is okay for you to contact them.
Even with the current level of international worries, we are still partners with Canada and they with us. There are certain guidelines that the members of these forums follow to ease crossings. They are simple things like not volunteering information to the boarder agents, simply answer their questions and don't try to chat them up, don't wear sunglasses at the crossings. These can be explained later or you can search here for more information.
You will hear from me within a week and if you want to contact me you can use the Personal Message feature.
David