Don't know if they have a chapter in Alaska but you might look into Northwest Overland. I have met up with the Treasure Valley chapter once or twice they are real good folks. They plan a fair number of trips but are mostly 4x4 guys. There are few that ride bikes as well. At least one besides me that carries the bike on the back of the van. I have often thought of getting a bigger dual sport for long treks but always seem to stick with the TW since I can cover the highway miles with the van then unload the bike at camp and have a nice camper to sleep in.