I know what Red Book have listed, but it is mainly based on Eastern States prices. ie they have more cars over there.
I have been bringing the price of my car down over the past few week. But i had to start from somewhere.
If you also look at the cars listed on Car sales, and other classifieds, especially the ones located in WA, mine is at the lower end of prices.
Not sure if you are interested in the car, or are just offering some advice. If you are interested, make an offer that you think is reasonable, come look at the car.