There's a RV park tied to one of the casino's, I believe the Wendover Nugget, and I looked at it last time I was at Speed Week and camping at the KOA. This other park looked to have empty spaces that year, so might be a possibility.
Camping at "the bend" in an aluminum Airstream didn't appeal to me, but I'm pretty anal about our 75th Custom. I don't see how you can avoid getting salt where you don't want it. Many people camped there are in rental motorhomes, or SOBs they may not care about.