I was having a look at RNAC prices and they are quite competitive, so I gave them a call.
They want to see a currency flight every 30 days with one of their instructors (effectively just a circuit or two), which seems a bit excessive - but I guess that's their requirements. I might dig a little deeper with them since I don't want to have to do 0.3 dual every time I go flying, which basically negates the cheaper rates.
I'm currently privately hiring through Hunter Valley Aviation (which falls under Basair) and their rates are a bit more expensive, but since my flight review 5 months ago, they haven't needed to see any other dual flying. I was hoping to find a private owner with an aircraft that isn't flying all the time and avoid the clubs and schools altogether, but unless I drive 2.5 hours to Bankstown it doesn't seem like there's anyone up here.
As for the Tiger Moth, I'd love to, but I don't think my fiancé would appreciate the bugs in the face!