Wow, not sure how I neglected to respond, or how I found this now. My take on an AK adventure:
1) Truck Conversions are made for this adventure. Mine did not have any problems with the rough roads (although you become a pro frost heave dodger), mud, unbelievable dust, steep climbs, etc. Although I did not need anything for the truck, I took the time to look around. Service and fuel for a truck was readily available.
2) I would not want to deal with a trailer, unless I was going to use it to get toys to AK, then drop it somewhere and flat tow to various places, or use the toad/trailer to haul ATVs, kayaks, etc. to other day trip destinations.
3)With that said, I hate not being able to backup with the toad attached! In 13,000 miles, I got myself into two jams where I had to drop the toad in a hurry. That was two too many!
4) The boon docking and state rv sites are the best. The private campgrounds leave much to be desired.
2006 Renegade/Freightliner Coronado 43', Detroit, twin screw, 12spd
2001 Ford Excursion PSD
2017 Ford F450