Does this just look like 100k mile surface rust that's nothing to worry about, or maybe hiding something worse? The Jeep lived in Hawaii for about 4 years but has been in Arizona mostly and Texas. I know the salt air in coastal and island cars can make rust crop up in odd places, but this is all I can find that looks rusty from the pictures I have been sent. I am kind of spoiled with west coast, dirty oily undersides and frames but no surface rust in my current Jeeps.