Well as far as i know i dont need a passport since im a permanent i.e born australia citizen and residency issues to not apply to people who are importing a vehicle prior to 1989.

WHO CAN IMPORT A VEHICLE - Personal Import approval will only be given by the Department of Infrastructure to Migrants with full residency visas, or to Australian Nationals or to New Zealand Nationals, who are of driving age in Australia. You will be required to provide proof of Australian residency by way of a passport or visa. If you are a migrant you will be required to provide proof that you have been granted Permanent Resident Status in Australia. Temporary residents and Companies are not eligible. Vehicles built prior to 1 January 1989 are exempt from the Residency requirement.