Oh, I wouldn't drive from Sedona. When I did the GC, I was in Phoenix on business. My wife and I changed our base to Sedona after my work was complete, and made the drive to the GC from there after staying in Sedona overnight. If I were to do a similar trip to MV, I would choose a town closer to...
When I visited the Grand Canyon a few years ago, I drove to it from Sedona and stayed at the canyon most of the day. Sounds like a drive to Monument Valley would be logistically similar.
I remember reading in one of the books I have on John Ford that Monument Valley was a difficult place to shoot because there is basically no infrastructure there (probably so it stays looking pristine and untouched). There were no luxury accommodations for the stars because they were basically...