As reported before, the drive up to Port Angeles should be easy. I did this in 2012(?), stayed both South of Forks at a general store in the Ho Rain Forest, and at an old military base in Port Townsend that is now a park. Great RV park there out on a point with water on 2 sides. A view of Seattle looking East.
I found out that it IS a good idea to make reservations for the ferry - I had to wait in line in Port Townsend for 3 hours for the 2nd ferry of the day because i didn't think I needed a reservation for the first trip of the day. Charges were by the total length of the rig in feet. My rig measured 57 feet (good to know) and cost $75 for the 30 minute ride over to Anacortes. A ferry attendant PERSONALLY turns off your propane tanks and tags them.
If you are taking the rig to Victoria, be aware you are crossing into Canada with a vehicle that can hide a lot of contraband, and that may merit a lot of inspection. You will need your passports, and GUNS ARE A DEFINITE NO NO IN CANADA.