Found on ADV rider, a ride report complete with a ton of photos from a guy who road north from Vancouver to Alaska in 1980. The weather conditions, the road quality, the gear and the bike are almost unfathomable in this day and age.
Nowadays we all have our specialized bikes. Back then (I started riding 2 years after this guy did this epic ride) you used what you had. If you take nothing else from this, realize that adventures like this are what you'll look back on with fondness in years ahead. Get out and ride.
BTW, I find the photos have a quality about them that is impossible to replicate with digital cameras and software.