Looks pretty good for just $2200. A good detailing would help. For a PA wagon, a look underneath would be in order. http://pittsburgh.craigslist.org/cto/4393674983.html
Has it seen some salt/calcium lately? On subject of cars and salt, Someone here in PA has been running his Ford wagon (Like this one, But Grey) in winter and he's been coating it with oil before the winter.
Some Google searches can help. I looked it up and have read some good points about it, Though one person brought up that oil (Or maybe it's just some types of oil) would dissolve plastic and suggested to use Fluid Film. Though this is just what I heard, I'm not sure if it will or not. I do think that coating a car with oil on the underside, In the rocker panels and whatnot will help though.
Oil spray has been around a LONG time, and it works! That is one of the reasons Ma's Arthur is still looking good after 24 Ontario winters. It is NOT motor oil, and certainly NEVER use old motor oil. Done right, there is very little dripping. It is also a good idea to drive on a dirt road when the oil is fresh, as that sops up the little bit of oil that might drip. The formula used is somewhat like a penetrating oil, as it creeps into areas that cannot be reached with the spray, too. The other trick to keeping the frames good on these big Fords is to install front wheel mud flaps. It keeps the grit from the road from scouring off the paint and what ever other coatings may be on the rails.
The mud flaps help big time. Have big ones on the front of my wagon. None of the oil washes off around the frame and rockers. Also, keeps sand from building up around the fuel/brake lines.