This has been a fun ride report to follow and read along. Much of the Canadian portion of your route I've been on, about a month behind you. For me, one of the most boring sections, yet it has tree's, was from Ft. St. John area to Ft. Nelson, as we took the same side route (29) bypassing the actual start of the Alaskan Highway.
Only because you mentioned Bear Lake does this come to mind. Bear Lake was my first of many run in's with the Mosquito. Inside of city limits weren't too much of a problem. Outside of city limits, such as Bear Lake where we camped, it was a bugger!
Anyway, great trip you had and great ride report now! Two thumbs up!