I have quite a few of the Bachmann HO products. Generally speaking they perform very well. However when you need a spare part, you are out of luck. There are only 19 spare parts shown on the website. For instance I am looking for the instruction sheet for a GS-4, so that I can order parts for repair. Am I missing something or are others having the same difficulty with replacement parts? If I cannot get replacement parts for even current locos, why inverst in a non-maintainable product? AQnyone have any suggestions other than find a basket case and cannibalize it for spare parts? Thanks for any help you can provide.