http://www.ejehclubqld.com or
http://www.ehholden.comThe victorian site is much better, as the QLD site is very new and doesn't have too much information. There is however a forum linked to the Queenland club.
I'd suggest you use the QLD forum for body and interior questions and parts hunting etc, and use this site for your red motor questions.
There are a lot of good people on the EH site, however they are more likely to post opinions rather than fact and it can take a while to get an aswer to your question. Definitely more experience on this site.
Good luck
Dave