With a little bit of courage (/risk/stupidity?) you could get one from Gmarket. I gave it a shot and it worked out alright.
They are an eBay owned Korean online reseller.
Get Chrome to help you sort out your cart. But I used Firefox to checkout.
I picked up a Topre 10th anniversary even-55g and had it shipped to Australia via EMS. Wasn't too bad, received it in about 8 working days or so in a gigantic box. Seriously, the shipping box was 4x the size of the keyboard box. Not the best packing

I paid via Paypal. They wanted to verify that I was the one that paid, so I had to send them a photo of some ID.
Strange, not sure what it really proves, and who cares who paid as long as you got paid?? Anyways I wasn't one to argue as I just wanted to try this board out!
They seem to have the largest selection of Topres anywhere that I've seen. (colours, even/differential etc)
If you want you could pick up some other Korean stuff, they have an unbelievably large selection of items!