I recently picked up a 4 car set of Southern Pacific Daylight aluminum passenger cars at a show.  They all had original boxes but no diagram or parts list.  I do not know what year they were produced and I have not memorized the item number from the boxes yet.  Does anyone know where I can get a car diagrama nd parts list for these.  They look awesome hooked up to the GS-4 I got last Christmas.  Thanks