Mapping programs are always overly optimistic with drive times, they presume you can drive at the speed limit all day and never have to stop for food, fuel, rest or ever face traffic congestion and possible road works. To add to that the fact you want to see the Redwoods and the place I have recommended is on route to Eureka [Avenue of the Giants] and there are other options such as the Marin Headlands on the north side of the Golden Gate bridge with excellent views of the Bay and Bridge, maybe a detour to Ferndale and suddenly you are looking at quite a full day on the road. The same would go for each leg of your journey, to continue to Crater Lake while exploring more of the Redwoods area would be a reasonably full day and then you would need time to drive around the rim of Crater lake which would then produce another full day to Hood river or somewhere in the Gorge area, and so on. So yes you can enjoy the areas but you won't need to worry about filling up time with places in between really, just stop and have a rest when a spot looks interesting. I believe they have cabins at the south entrance to Crater lake but you would have to check prices and alternatives, we actually travel by RV most of the time. If you can find lodgings to suit in the Trinidad area that should work. If you take CA1 and go to Point Reyes etc I think it would be too far .