Thanks for your enquiry. The majority of the data you are seeking can be found in Queensland Spatial Catalogue - QSpatial: http://qldspatial.information.qld.gov.au/
Use the following search terms: Property boundaries Queensland, Rail network - Queensland, Contours. There are a variety of contour data available. You will need read the description/metadata to see which dataset meets your specific needs.

There is no complete dataset of building footprints available. These two datasets may meets some of your needs.

Building points - Queensland - This dataset shows the location and names of buildings within the State of Queensland that have a footprint less than 625 sq metres.
Building areas - Queensland This dataset shows the extent and names of buildings within the State of Queensland that have a footprint greater than 625 sq metres.

Please consult the metadata for further information about any of these datasets. ref:81776

There is this dataset of footprints: https://geoscape.com.au/

PSMA is a Gov owned organisation. Can the datasets be made available?

OK Marc, thanks for coming back to me. The other datasets you mention will also be helpful - thanks. P