Hi Bruce,
The closest thing to a Klipsch dealer would be one of our Harvey Norman stores and they are just like a JC Penny store. I would not get anywhere going through them. Besides the closest HN store is 1500 km's away from me.
I only need one tweeter now as I just repaired one of them myself, however the other one is blown. I tried to find a way to search for parts on the Klipsch site but I could not see any way of ordering parts from them. Do you have a link to a parts ordering page?
Klipsch speakers are pretty expensive in Australia so the cost of a new tweeter from the US would be worth it. I have ordered quite a bit of gear from the US and it usually gets to me sooner than buying and shipping within Australia.
Cheers
Mav