I think you have come up with a great start.
I live about 45 miles from Ft Rock but WILL come down to the start and enjoy the trip. Hate to ask, but when is this going to happen. Lots happening for me this summer, so WILL make time for this one. Sound like a great trip.
Also when heading for Ft Rock through HWY 62, it looks like that is the way you have planned, stop at crater Lake, a little out of the way, but well worth the stop. Just a suggestion.