Your adventure sounds fun. I live in Idaho and so this type of adventure is what my life is all about. I am retired and so I can plan my trips to match the happening in the areas I want to explore.
An example is that we are headed to the Oregon coast this coming week. Being as how schools are back in session, the beaches and highways will be less crowded.
Last spring a TW buddy and I went to southern Utah. We rode in the St. George and Moab area and did it before the heat of summer had started.
I could share some neat places on your trip which are weather and time of year dependent. So, if you know about when your adventure will start, let us know.
Happy Trails All
Ron in Boise