Check out Ebay mate. Seen a couple on the australian ebay that dont look too bad ynd you'll get them a bit quicker than from the states.
As for DC's,well mine are H10-30, have survived 4000hrs of extreme african flying conditions so they are rugged. A bit heavy but work fine. The H10-13.4 are also really nice but the mic boom sometimes gets a bit loose. I agree with paying a bit more for something of better quality.
Good luck