Good information. Good question about being leave. That sure could cause some problems. Anyone had any experience with Hankook trailer tires? I have Dynapro ATMs on my 08 F350 DRW and wouldn't dream of anything else. The Dynapro HT has a 5 star rating with over 24,000 reviews at tirerack.com and won't put a guy in the poor house. I'm afraid to say that I have Freestar G rated tires on my 09 BH 3670 that are not showing any signs of ware and they are OME. No idea how many miles are on them. Do I really need to R & R these tires because of age? Going to Alaska this year, so planning on 8k to 10k miles if not more.
I kept a tire and wheel from an eight year old trailer as a second spare for my new trailer. Left it in my garage on the floor. Walked into the garage one morning and there was rubber all over the place. The 12 year old Goodyear Marathon ( made in USA) had exploded sitting on the garage floor. At 12 years old, the tire couldn't support its own weight. I have been to Alaska. It is 1,000 miles from nowhere. The roads have frost heaves which leave two foot high bumps spaced about 100 feet apart. A lot of the road is gravel due to constant repairs. I carried two spares for the truck and trailer along with 10 gallons of diesel fuel because stations are 200+ miles apart. One thing in your favor if you decide not to, speeds are relatively low. Once you get into Canada, it is mostly two lane roads and 45 mph. Don't know anything about Hankook trailer tires. Your DRW is easy on tires compared to my SRW Dodge. Mine has 6,400 lbs on the rear axle with the trailer fully loaded. I run Michelin LT 265 tires which are rated at 3417 lbs and only issue is that the rears wear out in 30,000 miles. I used two sets of rears for every one set of fronts. Never rotated them, I liked having newer tires on the rear due to the high load. Never had a tire failure with three sets of tires.
My advice is to buy good made in the US tires ( LT245 or ST235) before you leave. Goodyear now makes an Endurance model which is made in the US. Buy a new rim and keep one of the Freestar tires as a second spare.