For Sale on Aus EBay
http://cgi.ebay.com.au/VINTAGE-AUSTI...QQcmdZViewItem
Only seen one of these before, civilian Austin Champ with Austin A90 instead of the B40 RollsRoyce. BTW the name "Champ" came from the civilian model, as the original military version was known as FV1801,CT,4x4. or very similar (FV/fighting vehicle, CT/Combat).
Rich