Saline Valley Road shouldn't be an issue. Bat Rock Road may be a bit more challenging cutting across the wash depending on its condition, however, RV's seem to make their way out there each year. There are some large rocks in the road on the South Pass from what I've read recently so I would...
FYI, in November BFG released their new KO2's. My regular KO's were toast and I was able to get a new set of KO2's with a $70 rebate from BFG. I ended up paying over $200 less than my old pair purchased over 2 years ago. Kudos to BFG for not marking them up just because they are new.
EDIT: Just...
Wonderful report. Having made the trek out to Lemoigne Canyon I agree that is one of the worst roads in DV, however, the view looking down the alluvial fan is quite worth it. My hat is off to you for making multiple trips, and for finding Rood Rock!