You don't mention birds....is this all scenic? If so, consider picking up/borrowing copies of The Photographers Guide to the Oregon Coast, and Photographing Oregon. If Waterfalls, "Waterfall Lovers Guide to the Pacific Northwest". If Scenery - you've missed Mt Rainier, Mt St Helens...
If birds, this time of year, you've missed Malheur and the refuges at Klamath Falls. Most of the Willamette Valley refuges will be dry by this time of year (winter/spring its flooded fields, etc).
So reasonable lodging? Lots of great camping along the coast and in the cascades -- Oregon state parks have Yurts. warm and dry but you'll need sleeping bags. Reserve in advance!
For hotel/motel -- Portland, Astoria, Lincoln City, Newport, FLorence Coos Bay are all reasonable (Seaside, Canon Beach tend to be more expensive that the others). Inland - there's not much good lodging right around Crater Lake (although the Lodge there has been remodeled, but you'll better be lucky to get a reservation for June this late).
Roseberg, Medford, Klamath Falls, Bend, The Dalles all have reasonable accomodations. (Reasonable can vary from Motel6/Super8/all the way up to a 4 star hotel at a resort). On the Columbia River - Highway 14(north side in Washington is great between The Dalles and Cascade Locks (beats the interstate on the south side) but cross back at Cascade Locks to see the waterfalls including Multnomah Falls. Take the side road not the freeway all the way to Troutdale to see all the falls and Vista Point house.
Good luck - ten days is awful short for this agenda but you could do it averaging 100 miles a day(150 with sidetrips). Running a loop - Portland-Astoria-Coast to Cape Blanco light-across to Roseburg-CraterLake-Bend-TheDalles-Portland is 937 miles. Adding a trip all the way down to Crescent City back through Grants Pass and then CraterLake, etc is 1000.5 miles (but adds the southern coast, redwoods, the light at Crescent City(devestated by the Tsunami from the '64 Alaska Earthquake but the wave went around the light on the island in the harbor...arrive at low tide and you can walk over to the light) and a great trip back up the Smith River to Grants Pass (but not adding the side trip to Oregon Caves! Ask at Gasquet Ranger station to find the cobra lilies) would be my preferred loop.
And there are two very scenic lights across the Columbia from Astoria -- near Illwaco.