He doesn't have any with Eng/Kor legends unfortunately, they're all side printed in English only.
Just message him and ask him if he'll list one for you at the same price as the others. Make sure you're clear with all of the specifics (Black; Top-printed En w/ Kr sublegends; appropriate stem; etc) as the available options for the 750 in Korea is quite large. Shouldn't be an issue if you want MX Red or Black, as Leopold/Leaderskey currently list them in stock, but if you want Browns or Blues then you'll have to wait.
He's very prompt with replying back to you and handling everything, just be mindful of his time zone. Easily some of the best customer service I've encountered though.
edit- whoops, for some reason i thought you wanted navy. edited for the available black options.