You're likely to find it more cost effective to send it to DC in the US for repair. I sent my set of 15-20 year old DC10-40s in the the early '90's from Oz, and it cost the princely sum of US$70 (~AU$100). Can't remember if that included shipping. Tax deductable though! They replaced the headband, headpad, all cables, interior foam, a speaker, ear pads & mic. Probably the only bits that are original are the cups, a speaker & the mic boom.
Now I have to do it again thanks to a leaky plane filling the cups with water a couple of weeks ago, and the now 20 yo cable, interior foam & plugs failing. I spoke with DC about getting the parts sent to me & they said it's cheaper to send the headset to them than to buy the parts! She said they usually replace the headpad for free.
Last edited by Tinstaafl; 1st Jul 2014 at 05:02.