You might try the airport at Kingman, AZ. Interesting old WW-2 vintage training filed. after the war there were thousands of fighters and bombers stored here. Even today there are lots of old airliners awaiting their final demise. There is an old and very "rustic" museum that covers the history of this once busy place. The airport is close in to the town.
Not to far from the Grand Canyon, and lots of Route 66 memorabilia around the town.
Great mexican food at El Palacio, with awesome Margaritas. Sounds like a neat trip!