I would take the east entrance out of DV to Death Valley Junction. Take CA-127 south to Baker, continue straight under I-15 onto Kelbaker Road into the Mojave National Preserve. Go through Kelso then out the south entrance, go under I-40 to Old 66. Turn right and go into Amboy, then a left on Amboy Road to 29 Palms. I believe Mark knows about a nice place to stay in the 29 Palms area, I forget what it's called.