As per the Jeepforum link, if these are the OMIX ones then I have a set I brought back from the US. (The Omix website
http://www.omix-ada.com/ mentions Rugged Ridge as a brand name so I guess so) I paid US$195 or something off ebay but then saw then for 150 so even lower is a good deal. They are reasonably stiff (a little more than stock?). I have rubbed mine up against rocks and no cracks etc though they have got a few small gouges (but so did my stock ones). I found that the fronts don't follow exactly top profile of the stock ones at the leading edge so it only just covered the edge of the body paintwork on the sidelip of the front guards. But hey I bought mine about 18 months ago and they haven't faded, fallen off, came with all new attaching hardware and were the cheapest I could find... plus they covered my tyres without using the rubber extensions.
And by the way, the flares come in two big boxes... too big for USPS. So UPS or similar freight will be a killer to bring them to Oz unless you can find a seller who will ship by sea. I was over in the US and jammed all 4 into one box and didn't get pinged for oversize baggge.