Gil & Durlene,
About the best advice I could give you is to bring cash! When you are traveling thru Canada everything that you charge on your credit card will have a 3% surcharge added. We found that it was better to bring dollars and then once across the border go to a bank and convert the dollars to Canadian dollars. Your local US bank will charge a fee for this, but the Canadian banks don't
Check with your credit card company first to see how much the surcharge is; MasterCard was 3% and Discover was 3% if I remember correctly. Diesel is expensive enough without having to pay an extra 3%!
Bring spare parts and tools; fuel filters, oil filters, etc. I brought a spare tire! I put it in my Honda Pilot: the reason > I called tire shops in Anchorage to see if they had a 315/80 R 22.5 > they didn't! And they said they didn't know how long it would take to get one. One advantage you will have is that Prevost is Canadian so if you have to order parts they will not have to clear customs. I met a couple who had an Allegro and they were waiting for an ignition wiring harness to come from the US. It took 3 weeks to clear customs and be delivered to the RV repair shop where they were living!
I don't mean to scare you, but you need to do some planning. Good luck and have a wonderful trip. It is the trip of a lifetime!
Tuga & Karen Gaidry
2012 Honda Pilot