I wouldn't pay a premium for the "low mileage" My 1999 LX is pristine and had 164K on it when I bought it for $7K. I'd keep shopping because there's no way you're getting more than twice the value out that rig. Opinions vary but you're asking for opinions.
Rust is the main concern and I have seen a lot of rusty undercarriages pictured on this site where the potential buyer was adamant It was "100% rust free". As it has been said before: "rust never sleeps" and if there is "surface rust" it is going to be much worse where you cannot see it.