I echo the suggestion that you not try to make loads of reservations. In all my trips north, I have never stayed 10 days in either Fairbanks or Anchorage. Allowing flexibility for weather, or fires, or special events is important. This year has had many rain days this summer. Some years has been extra smokey. My last trip up, the smoke was so bad I was going to divert to Dawson City but the road was closed due to a fire..so I backtracked to British Columbia and Alberta which are both wonderful in their own right.