Holy shoe, I had to resurrect this great thread, read it throughout, watch all these pics and I am amazed Ole. Great trip and massive amount of pics is just holding my breath!!
As to your Alaska trips, my Beemer riding buddy has a friend, also BMW, who travelled solo to Alaska 2x. He made more than 20 Kms during that trip, and I think longer than a month.
Gravel roads are not my and my CB fave :- but I have to admit, you got the right bike for this adventured escapade . congrats and well done Ole