I'd just keep an eye on eBay. When people auction them off instead of asking some ridiculous fixed price, even the silenced ones barely scrape the $200 mark. I don't know how eBay's international shipping program rates are, but I've sold quite a few things to people overseas, so the rates can't be too horrible. There was a guy on Deskthority who sold an older Realforce without Windows keys for just over $100 recently.