That's a good price, period. That's about what you'd pay before shipping charges, from a dealer if you had a C&R license. From a gun shop, you'd pay $100 or more, regardless of shape.
As for if you should buy it or not, look at the bore, if it looks good, no rust or pitting, it's probably a good rifle. The wood and exterior metal on these tends toward the rough side of things., If there's no big gouges, or cracks in the wood, then it's good to go. Rarely will you find one with wood that doesn't have scratches and dings.