What's high in your area may be low in mine. The best thing to do is go to:
www.kbb.com
Put in year, make, model. It will then ask you for mileage, options and condition.
That vehicle around here in loaded, good condition would be $2,500
The vacuum line is a black rubber hose running out of the intake manifold. If you find a hole in one of the lines, take the hose and go to an auto parts store and get a new one.