I looked at buying very similar dresses in Australia but they were at last three times the cost ($350 for a standard size, plus alterations)! I ordered custom made for all of by bridesmaids. The sizing wasn't perfect, we did still do some alterations, but this still ended up a LOT cheaper than buying the dresses in Australia.
I ordered extra chiffon so two of my bridesmaids got straps added to their dresses. I also ordered extra satin and had matching ties made for the groomsmen.
Overall, I was VERY happy with these dresses and would highly recommend this website and this dress.