The OP has a tremendous advantage in wild west travel as he already lives there. It took us 2 long and 1 medium day just to get to Amarillo. We were out 26 days and wish we could have seen way more than we did.
DW has not been able to bring herself to miss a grandbaby's birthday yet so it is impacting the timing and length of our trips.
I wish that we had stayed longer in Albuquerque but other than that we were able to stay several days in Winslow, Lake Havasu City, Benson (AZ) , and El Paso. Out I40 and back I10, I65, and I85 back to home.
Kartchner Caverns state park in AZ is a good central place to see southern AZ with your toad or truck. It is in Benson AZ. Tombstone and Bisbee close by, Tucson not to far, and we found a Forever Home Donkey Rescue to visit out in the desert north of town.
BTW I10 in TX is 880 miles border to border :).
