Dont neglect the hot springs along the way. Liard hot springs in canada is awesome. (its off the alcan. aka your road) And once you get to AK (near fairbanks), chena hot springs is pretty awesome too. Last time I went up, I hit up Liard on the way there and the way back. Few years back a bear killed someone there, so bring some bear spray. (carry it at all times outside the cities up there)