I think you have hit the nail on the head there John.My layout thread GVSt and Adelaide is being built with the great childhood memories I have from living beside Adelaide station in the 70s.I was lucky to witness the swansong of steam with the jeeps,the building of Adelaide freight yard from the ruins of the old GNR loco sheds on the bog meadow and seeing every type of railcar,AEC,BUT,MED,MPD,70s and 80s running along side brand new DH and DLs with various forms of rolling stock.Added to that the CIE Enterprise in the hands of an A class or 141/181 with the 071s coming a few years later,but the main highlight was watching the freight operations all day during the holidays at Adelaide,with As,Cs and 141/181s hauling traditional freight trains with a brake van,before being replaced with the container traffic.Always remember racing the freight trains as they pulled out of Adelaide along the back entry's as far as Lislea(were the entry ran out)and waving to the brakeman.Happy days,hence the reason of trying to recreate it all in model form.