I would like to do that trip, but have to compare schedules with other folks before committing. Also, the PNW4WDA Trail Jamboree starts on Jul 9th and goes thru the following weekend, another event I would like to participate in. Just have to do some juggling.
Interesting side trips along the eastern OBCDR are abundant depending upon how far you are willing to drive sideways.

I'm sure others will make suggestions, but if they don't I will later.
Jerry from Yakima