Sorry, I have been traveling (sadly not by bike) so just saw this. Yes, briefly, that is the way we went. We started at Port Angeles, went up and down Hurricane Ridge as a shake-down ride, and then headed west and south, through forks, camping on the spurs like the Ho Rain Forest campground. The campgrounds are fine; that one is within the Olypmpic national park boundary so it is completely safe and there were plenty of people (so many that we wound up sharing a campsite with a very generous couple and their baby). The isolation is when you are on the road. There are very few amenities and stops, and some of the scenery looks like that picture I posted above (or at least back then), so it isn't always all beautiful scenery. We met people who had lived there for their entire lives except when they shipped out to Viet Nam. My main fear doing it alone is what might happen if I broke down or was injured. Once you get to the South half of Washington, and then Oregon and California, it is far less like that.

Also, the distance between those gold stars (I assume most are campsites) is often about 70 miles, not 40.