I would second the above comment from Solarmoose. From Alaska, it is only about 3 days to get past Prince Rupert and only 5 to the west coast and I'm no speed demon or iron-butt type of rider. Plus, the road route will probably be cheaper. I've taken the ferry once about 35 years ago and that was sufficient. I've never felt compelled to take it again. The scenery is great but I prefer the road.
1983 R100RT w/Cozy Rocket sidecar