Helping a family member move to TX at the end of January. After which I will be driving back home from Houston to California. I wanted to take some time (6-7 days) to explore western TX, southern NM & AZ. I was thinking Big Bend Desert, White Sands NP, & I can't quite figure out AZ/ (Maybe Sonora Desert National Monument?) Looking for some dispersed camping and trails a Subaru Forester with almost 10.5” clearance can manage. Any suggestions, tips, or experiences would be greatly appreciated!