Thanks for the replies. You have definitely brought up things I hadn't considered. The Jeep - motel approach would probably the way to go. As for driving the RV up there, hubby absolutely refuses to even consider it. And after 50+ years, I know when to throw in the towel and go to plan B. It looks like we need to allow a little more time for sure. The cruise package we were looking at was 11 days including the train ride and 2 days in Denali. I believe there was seven stops on the way back south.
Explorenorth thanks for the offer of more information. I will be contacting you by PM.