Hi Greg,
If the tires are bad on the truck I have a set of the Dayton rims with decent tires you can have if you pay shipping and handling. They will be good enough to drive the truck for a few years or until you want to upgrade to tubeless 22.5's. I've shipped pallets to Calgary for about $200.00 through Van Kam. The rims I have are 20",
here's some photos. make sure yours are 20" the Daytons also come in a 22" split rim.
I don't think it is all that hard to get a registration for the truck, talk to the motor vehicle branch and see what they say. I know others that have done it and they tell me it's no big deal as long as the truck is not stolen or from out of province. There is of course, a fee to be paid.
Bill