I think the LTB BLM improved camp ground (upstream of Pilar) was $7 a night, but I did not personally stuff the envelope, the other guys in the group did. Included running water, full on m/w bathrooms with real sinks and toilets (not vaults), camp shelter with 3 walls and cement floor at each site, picnic tables, combo bbq grill/fire pit ring. I thought they were pretty darn nice and possibly fit for a non-camping spouse, but man does the wind blow down there. Take out from LTB run and walk 50 yds to camp, avoiding cactus along the way.
We ran it earlier this year at around 1400, take out could be more dicey with less slowing around the bend. Worst case take out right at bridge, and walk a little further. Did I mention that the wind blows?