G'morning from Sedona, AZ. WOW!! That's going to be some trip!! How many rigs will be in your "group?"
We've visited Alaska with our 40' MH towing a car in 07 (drove up and back using Ferry system briefly between Haines and Skagway only), and I was stationed in Ketchikan years ago with the Coast Guard so I'm a little familiar with the Inside Passage and the Alaska Ferry system. Is your group planning to use the Ferry system BOTH on the way to and from your Alaska visit?? Also, how much time does your group plan to spend on this trip?? Not prying, simply trying to make compatible suggestions.
Steve & Lynette
2014 Newmar 3103 BAYSTAR/Triton V10 w. Banks/05 Honda Element toad