Model Railroading > Any Walthers P-S Observation-Lounges?

I'm looking specifically for a Walthers Pullman-Standard Observation-Lounge with plated sides to complement my Rock Island 'Golden State' train I'm creating in HO scale. I know Walthers had this "Vista" car lettered for Santa Fe, but I don't know if the Rock Island or any other roads were created by them with the stainless style in the early 2000 years. Other than that offered on Ebay, I'm just wondering if anyone knows of the availability of this Santa Fe car or otherwise in the fluted stainless sides. Any help is appreciated!