http://www.monsterlabs.co.kr/shop/product_detail.html?pd_no=11457Hansung, ABS Double shot, White base, Red imprint
KRW 30,000
http://www.monsterlabs.co.kr/shop/product_detail.html?pd_no=11500Hansung, ABS Double shot, Dark base, Brighter imprint, Dolch imitation
KRW 30,000
http://www.monsterlabs.co.kr/shop/product_detail.html?pd_no=11502Hansung, ABS Double shot, White base, Blue imprint, Wise imitation
KRW 30,000
http://www.leopold.co.kr/?doc=cart/item.php&it_id=1402620672Leopold, PBT Laser, Dark base, Brighter imprint, Cherry imitation
KRW 35,000
Try to contact with them. You could have one of them, if you are lucky.
And, I do not know clearly whether ALL keys are compatible with yours or not.
Because, nowdays we have thousands of layouts and idiot-mutations.
(But, only for the Hangul/English area, I'm pretty sure, everythings will be fine).
Finally, there should be some more shops out there, I am not that much interested in there.
Regards