Mannyrock,
If you're interested I have a set of Williams Western Pacific F3 AA units that I had listed for sale here. These great looking diesels are part of Williams Golden Memories series that basically replicated Lionel PW issues. These came in the "silver boxes" and are like new. I can guarantee you they have less than 30 minutes track time. As mentioned above these are excellent runners and are Williams "bullet proof."
If you think you might be interested contact me at my email which is in my profile.