Nope, you guys keep strictly to regular rust in the Pacific NW
...seriously though, if you can afford to get a truck from down south a ways, do yourself a favor. Rust presence will most likely be your governing factor in your hunt for a truck, given how bad some of them get. The sheet metal on LUV's is thinner than larger American trucks, so it wears through quicker if left to the elements.
Also, don't worry about little things like paint mismatch 'devaluing' the truck. You'll have to get used to the hiccups and imperfection inherent in owning a classic vehicle. Don't be discouraged. They are all somewhat unique like that after 40 years.
If the one you found runs well, and you can't find any major cancer on the frame or in the wheel wells, you're probably on the right track. After that, ask the owner if he/you can take it to an unbiased general mechanic to give it a look. This will cost about 100-150 bucks, but it is
worth it. I cannot express this enough. It's the best way to avoid buyer's remorse 6 months down the road.
Have the compression checked, the clutch, etc, and of course ask him to have a better look around for rust.
Also ask him to report any other oddball things he finds. If he thinks it's worth the deal, jump on it and don't look back.