too old... doesn't matter what it looks on the out side , it could have a new paint job and looks nice but what matters is whats under the hood. it will give you problems and trust me.. for a young driver on a low budget as I assume , these cars are very expensive to fix. expensive parts. and once you get your self into a headache problems never end, and if you decide to sell it after it may not get you as much as you paid for.
you will find something better.
to answer your question.. how much are they worth.. check out www.kbb.com and plug in all the car's info and it will tell you based on where you are. how much value of this car.
my advice if you really want this car.. I cant see this car obviously but take it to a mechanic have them look at it, and better take their advice.
good luck!.