There are a ton of spots to camp along Owens River Rd.  All the spots closest to 395 were taken when we went in late September, but we found this spot that I've marked here that was easily accessible in our 26ft Motorhome.  Owens River Rd itself is paved, but the offshoots are hit or miss so take it slowly and proceed at your vehicle's ability. 

This particular spot was nice and big and is probably suitable for any size rig.  The pavement on the road heading in was partly washed out but we were easily able to drive around the pits.  See video - it's long but I recorded us leaving the spot and showed the pits in the road.

Good cell reception, very quiet, very little traffic.  

No amenities, no toilets, no trash service.  Area was clean! Hopefully it stays that way.