Alaska bound from Calif

Hello we are planning a road trip in June/July 2025 from So. Calif to Denali Alaska. We are traveling in a 37' 5th trailer 13'6" high. I do have an Rv app that I'm starting to map it out. There are 4 adults and one of us is a quadriplegic (ALS), in a motorized wheelchair. We all have traveled together frequently , challenging at times but definitely doable. Does anyone have any suggestions for which roads to avoid in our 5th wheel? We are really hoping to catch a glimpse at the bears and salmon. 

Do you know if we are able to cross on the ferry in Victoria BC in our 5th wheel? 

Please share any information for roads, Rv campgrounds and things to do that would be wheelchair accessible .

Thank you