The windshield ice scraper is a needed item.
You will be using it if you are in Canada in the winter.

Ice Scraper/Snow Brush will be picked up in Canada. Those sold in Texas are a joke!

You are unlikely to find a use for the machete in Ontario.

Less a machete, more a really big knife/chisel/pry-bar. Sometimes better than a hatchet Ontario SP8

Only bring the guns if you are buying hunting licences and intend to go hunting.

Maybe more trouble than it is worth

For a stranger into the area a GPS with mapping might be a good idea indeed.

Yep

If you get here one of the tricks local driver use is a small bag of dry sand or granular kitty litter for under the wheels if you get stuck on ice. I like coarse sand instead of litter.

Will have home made sandbags created from truck tire tubes.

You might want an extension cord to plug your truck in with.

Should have listed, but yeah I will have several.
You might make it through the winter without needing to use your block heaters but motors start easier if they are warmed first.

Not worth risking the truck starting. It has block heater as standard equipment.