Amy, check the "free" listings on craigslist if the subject machine isn't under the appliance heading there. Too bad the OP didn't provide an e-mail address, which seems counterproductive to me. There's no way for any of us to make contact so you'll have to hope he or she returns here to see if there's anyone interested.
By the way, the subject machine has only one wash arm, so you will have to load it carefully so as not to obstruct the spray from reaching the upper rack. Other than that, KitchenAid referred to this model as "A hurricane in a box" so it will do a great job for you if you manage to get it.