Are these adventurers planning to do the trip now (February, 2021)?? I hope not because they will not receive a warm welcome in BC.? We are at about the worst point in the 2nd wave of the Corona virus pandemic these days and there will be a bit of paper work to complete before being allowed to drive north.? There are restrictions on all vehicles traveling north through BC right now and people (The Authorities) are not happy ($$$) with those that "deviate" from the exact route that might be allowed.?
I strongly suggest they wait until this time next year.? On the other hand, if their Willys were to show behaviour that slows them down, by the time they get to the Washington/BC border, the situation might have changed!
PUN