The Lima Indian Pacific cars are still available (Hornby bought Lima and has done a run in the last few years) but you don't want them.
They are basic even by 1970's standards (the decade they were originally released) and Hornby didn't put any money into improving the models. They have european NEM couplers of a cheaper design (not even up to Roco or Trix standards), no internal detail, minimal external detail, not flush glass windows (I guess we should be grateful there is any glazing), 'cookie cutter wheels' (don't ask) and last but not least, a high price tag (AUD$80 @).
I have been periodically lobbying Auscion to add the Indian Pacifc to their list of projects. I know of a few other people from around the world that would like a model of Australia's premier express train. But the local importers don't seem to be interested in the Indian Pacific. Remarkble isnt it?
Anyway, sooner or latter I think Auscison will cave in and see reason. The old Lima cars really aren't worth it unless you can get them cheap and are prepared to kitbash the things into something presentable.