I need to get mine done also but the pricing for genuine MOPAR is about $350-400USD ($480-550AUD) plus delivery. I get most of my MOPAR parts through
http://www.genuineautoparts.com.au/ and they are cheaper than the stealership and for example the glass liftgate hinges on the GC is $135ea stealership and $90ea Genuine Auto Parts.
I've got a thermostat and housing plus the 2 hinges for $300 plus $17 for delivery from Sydney to Cairns.
If you still want to look at US try
http://www.rockauto.com/ and I have bought from them and are good and do ship to Australia. From their website I got $600 for a MOPAR lower control arm right delivered to Cairns as a test and GAP is about $770.
With buying from the US you need to have the correct part number with GAP you can add your VIN and they make sure you get the correct part.
Hope that helps