It could be a hit or miss, but the asking price is always their high number out the door (and no on ever pays asking price).
Is it a V6 or V8? If V8, then you will have to worry about the timing belt change coming up relatively soon (if it isn't already done). That can be pretty pricey if you aren't handy with a wrench.
Also, was the lift done right? If it's just something they slapped on for value or looks at the last second, that may cause problems in the future (ball joints, axles, bearings, tie rods etc.). Just stuff to think about and ask the owner.
Number one question: Why are they getting rid of it in the first place (since they are the 2nd owner, not the original, and such low mileage)?
As for pricing, just do your research, and go in informed. Ask questions, and don't be afraid to negotiate down to a price you are comfortable with, plus what you are willing to spend on necessary maintenance in the future. Most of all, don't be afraid to walk. There are deals going on everywhere.
Best of luck with your future purchase!