What part of the coast do you like best and why?
We found out that the OR had so much to offer that we divided the OR coast into thirds and really liked how our travels turned out. This would also work for you because about 1 week in an area and we're ready to move on.
Northern section... is full of history you can reach out and touch, some of the history; so to speak. A very good (newer) book out titled "Astoria" by Peter Stark. Will give you a better understanding of that area before you go. Well worth reading.
Then all the Lewis & Clark stuff and then onto to World Was II. Area is full of history.
Mid section...The ruggedness of the coast, smaller county or community museums well worth the time.
Southern section... After 3 trips to that section, we're still not done yet. Wife keeps finding really old relatives in really old cemetery's. And the family history buff, her Aunt keeps finding more info for her to check out.
Can't recommend any RV parks because we don't go to the coast in the summer. Off season we had no problem getting most any place we wanted. But some places are tight. We're 52 feet overall with TT and wouldn't want to drive to an campground without checking to see if we would fit or not.
Also be careful, there are places (off 101) that have signs saying "NO RV's ALLOWED" or "no oversize trucks" ect. This is not because the people are RV unfriendly, just the opposite, they welcome you. They're trying to keep you out of trouble. But the problem is some places were built for horse and buggy years ago, and not modern RV's. Very narrow etc. But traveling along Hwy 101 like most do, you'll have no problems.
Don't know if you are concerned or not, but fuel prices vary a lot. We found Fred Myers to be about the best as far as plugging them as fuel stop. That way we didn't have to worry about looking to see if we would fit into smaller places along the way. Some are tight but doable IMO.
Any time during your trip you feel you want to make some good time on 101, get that thought out of your head before you even start. It's a great drive and find it hard to do the speed limit sometimes. No big deal and very nice driving, just don't get in a hurry.
I'm going to dig thru my files later today or this week end for another project but If I come across any of my OR files I'll post them here. So make sure to hit the "subscribe" button of your thread, if interested.
OK hope this helps
2003 Majestic 23P... Northwest travel machine
2013 Arctic Fox 25W... Wife "doll house" for longer snowbird trips
2001 "The Mighty Dodge"... tow vehicle for "doll house"