Hi, I have a Bachmann Penn Central 'n' scale set with 2 - F-9 EMD locomotives "A" & "B", a Penn Central caboose,  tanker car, 2 refer cars, a cattle car, gondola car and a power pack and track. Does anyone know the name of this set or a model number for this set so I can find an instruction manual and parts, or even the year this was made. Thanks in advance.