This thread seems cursed with all unobtanium cards.
For European items, you could try amazon.co.uk and amazon.de. They both have English, use your existing Amazon account, and will almost always ship to the USA if sold by Amazon. I buy non-US items this way all the time. I have found that most third party sellers will not ship to USA.
For Asian items you can try amazon.co.jp. You can also use this site in English. In my experience shipping to the USA is a little bit more hit and miss, even if sold by Amazon. Also for some reason it doesn't accept my existing Amazon account any more, but it used to. So I'm not sure what's up with that.
To switch an Amazon site to English, click on the little globe icon near the upper right.