I had a 2104 red and was always towing heavy and if i remember right it was about 500 mi to the gal. You can buy jugs of it in Canada if you need more. A full tank and a couple jugs should get you anywhere you want to go. I now have a Phaeton with 8.9 ISL and on trip to Ak used the 2 i carried and bought 2 in Canada along the way.
There isnt a problem with the phone working in Canada, its just that ATT will ding you pretty hard on your bill if you dont do the $40 a month deal with them. Our freinds found out the hard way. Too me it was worth it to know what it was going to cost ahead of time.
You cant assume its not legal and you cant assume it is legal. Check each state you want to travel in and dont go by some internet site that lists towing regs, contact each state yourself. Its legal more places than you might think.
I was born and raised in Ca and left when i was 22. I hate the politics and the rules and regulations but the beauty is undeniable. I am going back because of the beauty. Lets talk about cost of living as well. Yes i will have to pay state income tax but the registration on my motorhome was $4200 in Nv and its $1600 in Ca. My pickup in Nv is $900 and my buddies similar truck is a bit over $500. Property taxes about the same in each state. Just in vehicles, motorcycles and trailers i will be saving approx $4k a year that will go back to income tax in Ca so it will balance out to some degree. Still going to keep a place in Nv though as i still consider it to be home.
I had a dozen trees removed recently and the bill was $4800. That included removing the slash. These were pine trees and they had to top them as there wasnt room to drop them without doing that. This was in California and i am sure prices vary by area.
I dont and wont carry chains for anything i own. California is the only state i have been to that checks chains and thats commercial only. Its also the only state i have been to that has chain control checkpoint for when they are required, all other states put up a sign that says required. Unless you plan on driving in a snowstorm dont worry about it.