Steve, What is your schedule like? It is really worth considering. If I get to Anchorage I would like to go to the end of the haul road. The only place I know of that has fuel is Wiseman and I am not sure I like the idea of the gravel stuff of there.
I don't know if a round trip can be made from Fairbanks. One thing about it - you need night currency that far north.
Frank