Buy a car without physically seeing it
Unlikely that car spent its life in SoCal or NV. Might get some rust in the Sierra Nevada, though they don't salt the roads there. In L.A., 1960's cars usually don't even have a spot of rust on the rear bumper brackets even parked outside. You still see 1970's Jap mini-trucks on the road, which rusted away in the east. My guess is that car spent time in the east before coming to NV. The fender tag will tell where it was built. There was an assembly plant in L.A. in the 1960's.