Frankly I'd just go to either Portland, Coos Bay, Ashland (highly under-rated), or Eugene in one swoop and then make day trips radiating out from either central location. It actually would save a lot of time compared to setting up camp or getting hotels in different places, and on "off-days" you can really enjoy the local sights and communities.
There is probably more good oceanfront along the Southern Oregon coast than anywhere else.
Heading home via Route 395 on the Eastern side of the Sierras is also pretty nice.
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