Greetings Ferro,
Sounds AWESOME!!! I used to live in Fairbanks and may provide some useful tips. We have made the trek several times back and forth over the years. The last time was in Feb O7 with our 1979 Ford 350. First off the Canadian border Gaurds inspect most all rigs. I have been asked to untarp/load my stuff for proper inspection. They can be extremely overbearing at times or not fool with you at all. The Mounties are the same. Once I pulled into a rest stop way up north at 2am to get some rest and I was threatened that if anything happened to the rest stop that they would know who to look for then proceding to wake my wife up and ask her if she was with me at her will. LOL, I find that grinning and bearing these situations and politeness is the best defense. The veggie oil is a great idea (had a ford up there that ran on it) The 55 gal drums in the back may be an issue at the border, check into it. Definately no guns! allowed through. I made extra fuel tanks for the rig and were a blessing. The milepost as mentioned is a MUST. It gives you distances between towns and services and very descriptive on what is up ahead and road conditions. Be advised that things change and depending on when you actually go some places close early and open late or not at all. The book said there was a year round gas stop ahead, It was boarded up tight. Wound up poking around and buying fuell of some native kid. Another time had to wait till the next morn to buy fuel. Good tires are a must. Never had a problem but the roads get pretty slick and muddy. I would definately insulate the cab for noise and heat. extra windshields are a must. Log trucks and big rigs on gravel roads put your windshield at unreasonable odds.
If you could work out more time the better for you all around. Driving those roads can be exhausting at times, also you will see the most beautiful places on the planet there and may want to make an early day to stop to enjoy it. ( As from any mechanical issues as mentioned before)
The Haul road north of Fairbanks is/was gravel and has many rough spots. you can encounter hordes of cariboo, to road construction, to slow heavy trucks. I used to work for a heavy haul outfit up there . The average load is 200,000 lbs and slow. I can be very slow moving up there. 30mph will have you feeling like the Apollo 13 comming back to earth. You will feel like you are on another planet and will cherish it for ever.
Definately check into what it takes to get into Prd. Bay, as mentioned before there are stipulations on public trafic and such. You may have to contract a tour co. to get you in. It probably will tell you abou that in the Milepost.
This will be amazing adventure for you. I have several friends that work up there in Fairbanks as seasoned mechanics/welders and may be of assistance if need be. I will keep in touch with your post and drop you contacts as time gets nearer if you like.
I hope this helps and if you are comming through Oregon you can count on a place to rest and all the food and beer you can muster before you launch into the last Frontier.
Good luck on the preparations that is key to a trip like this. I will try to post some picts to aid in the motivation dept. Please feel free to contact me with any questions.
