You may want to become familiar with this;
http://www.consumer.vic.gov.au/clubs...d-associations

and/or the relevant governing body in your State to ensure compliance.

My suggestions is to have the club established in Victoria first, then build other States as the initial framework is developed.

Purpose
Reading other club constitutions I am impressed with the SCCSA's purpose statement which says;

- To promote and encourage the preservation, restoration and use of Holden Sandman (clarification and definition required here) vehicles and promote, collect and disseminate Sandman historical information.

- To promote and hold motoring events and competitions to offer and award prizes for owners and drivers of Holden Sandman vehicles (clarification and definition required here).

I believe we should develop our own, notwithstanding the borrowing of something that is already well worded in accordance with our club's purpose.