I am going to add to the recommended sites to see, Kalaloch Campground on the West side of the Olympic Peninsula and the Ho Rain Forest.
Kalaloch(pronounced Clay Lock) might be tight for your rig and most likely will require disconnecting the truck. We have enjoyed the campground and surrounding environment since our girls were tweens.
The Ho is beautiful and while you probably won't see Mick Dodge:W, not much filming during the rain, it is beautiful. That time of year the campground may not be open and the resident elk herd should be around.
Forks was the site of a TV show about vampires and such and is a quaint little town. It is a very short drive from Kalaloch. Up in the very N/W corner of Washington State is the Makah Indian Reservation. Mick Dodge goes there for natural medicines and healing:R.
You could spend a week there with all the attractions, beachcombing is good that time of year as the winter storms have brought flotsam and jetsam onto the beaches. There is a very nice State campground just East of Port Angelus and it is easy to see Hurricane Ridge from there as well as a day trip to Vancouver Island.
Port Angelus is famous for Dungeness crabs as are parts of the OR coast.
I'd better stop now or you family and friends back East will wonder why you didn't return when you said you would. Good travels and safety in everything.
"I travel not to go anywhere, but to go. I travel for travel's sake. The great affair is to go". R. L. Stevenson
David Bishop
2002 Winnebago Adventurer 32V
2009 GMC Canyon
Roadmaster 5000
BrakeBuddy Classic II