GA, the driving time from Fairbanks to Bellingham is roughly 48 hours. I really enjoy the Cassiar for the scenery, more laid back but is slower than the Alaska Hwy, since the Cassiar is more twisty and up and down. Over the years the Alaska Hwy has been straightened, widened, relocated in places and overal shortened about 40 miles in length.
Prince Rupert is a good visit for us. It is a beautiful drive from Kitwanga Junction over to PR. We spent 4 days there our last visit and could have enjoyed a couple more. We were not aware PR is such a major shipping port, especially for ocean going bulk freighters. A great multicultural population, lots of good eating places, museums and the restored fish cannery, many beautiful buildings, etc to view and photograph. Nice campground there in town.