I came across a local concrete company liquidating and he has an older 20' gooseneck with duall axles and single wheels. Overall it's about a 6 on a scale of 1-10, but tracks about 2-4 inches more on the passenger side. You can see it in the mirrors, but on the drivers side you can't. Does this mean it needs an alignment or ? One of the tires on the opposite side is cupped pretty bad. The deck is in pretty good shape, no ramps and lights need some lenses replaced/work. How much should I be willing to pay on something like this?