I am very new to the whole TMCC thing and have a question for the experts. I have 2 old lionel GP-9s from the 90th anniversary set and the LRRC 2007 GP-9 that I would like to MU with the orange 1997 GP-9 (6-18846). Is there an upgrade kit to convert these older engines to TMCC? Alternatively, I was also considering buying the B and M GP-9 MU ABA set. If I went this option, are the body shells interchangeable from the older locos onto the B and M locos? I also have an old Northern Pacific dummy GP-9, item no. 6-8668, before taking it apart can anyone advise if this is interchangeable with the GP-9s I would like to MU? I am in Australia so technical advice is pretty much non-existent. I am travelling to the US for a vacation in 3 weeks so can take the opportunity so hit some hobby shops and bring back some bits and pieces in my luggage, so will be asking several questions so I can plan my shopping.
cheers