Here's my recommended route for one of your days. Start at Oriflame Canyon off the highway at Banner it starts at a higher mountainous elevation and slowly drops into the desert floor so you get a good variety of scenery. There's a gate at the entrance but should not be locked (required to be unlocked due to fire route)once you drop down into the desert continue east until you reach the S-2 hardball and turn left (northish)drive a few miles to the entrance of pinion mountain on right(trailhead marked by sign)do pinion mountain trail and then when you drop into fish creek, turn right and go out towards split mountain. Turn right on the back entrance to the diablo drop-off trail. climb up diablo drop off if you can make it. Dont be scared to use throttle on the second sandy part, you'll need it. At the top take in the view and take photos of the "badlands" if you still have time, now your now right near the mudcaves check those out if you have time, then go out back to the S-2 via Canyon Sin Nobre, and head back to Ocotillo wells.

Also recommend South Coyote Canyon Like Holger Said that should be on a day your not doing pinyon. Maybe pair that one with Calcite Mine..difficulty can vary on that one due to wash outs.

Smugglers Cave is pretty bad <img src="/forums/images/graemlins/butwiggle.gif" alt="" />too but its way south and away from your planned base camp the border patrol presence there is a little heavy there due to its proximity to the border and yes there are smugglers in the area. You can shoot at the base of the mountains over there so if thats part of you plans you can there. The terrain is very different over there and there's some hard core options.