I need to apply for the RGP permit a month before if I am not mistaken.
The RGP is valid for 28days, so you need to have it approved no more than 28 days before you leave.
When I was trying to find out about exporting some Bertram brass I could not find a phone number, but they did respond to Emails within a couple of days.
If you go to this website it explains all the hoops you need to jump through.
Below is an extract from the ABF website - others might have more precise info.
Applying for a Restricted Goods Permit
To obtain a Restricted Goods Permit, passengers will need to complete and provide the following forms and documents:
You can lodge the required forms and documents in person at the closest
Customs house office. If you live outside a 50km metropolitan radius, you can lodge via email.
To apply for an RGP:
- you must be a registered client in the Integrated Cargo System (ICS)
- you must lodge an export declaration up to 60 days before your departure from Australia.
Exported goods on an RGP require an export declaration, regardless of the value of the goods.
You can lodge an export declaration up to 60 days prior to the export of the goods. You can apply for the RGP up to 28 days prior to the departure of the firearms, or on the day of the departure.
If you are not a registered client in the ICS, you will need to complete
Registering as a Client in the Integrated Cargo System (Form B319). You will also need to provide provide 100 points of identification.