Richmond Birdwing

Richmond birdwing, originally uploaded by Fraserg.

Rapid population growth, greedy and unconsidered housing development and road building are a real threat to biodiversity and conservation here at the Sunshine Coast.
I'm stocking up my garden. Apart from fruit and vegetables I want to grow wildlife attracting plants.
Butterflies here are AWESOME - see the Richmond Birdwing with a wingspan of 14 cm - once common around here is now rare, because of loss of habitat and feeding plants for the larvae. I have seen ONE in the one and half years I've been here.
I would like to plant a Birdwing Vine 'Pararistolochia praevenosa'. Who's got one I could take a cutting? Or where could I buy one? Grateful for any pointers.