Keep in mind that MSD's (Mini-Super Dollfie) are usually less expensive then SD's (Super Dollfie). Secondly, there are so many places you can look into buying dolls.
Domya - They carry many brands and types of BJD, including Pullip and Blythe, and if you have the money they can even do FCS (Full Choice System)
There is Ebay and Yahoo Auctions, as well as the Japan Yahoo auctions which usually carries more Dollfie stuff. When Volks opens their store in LA (Side Note: Wouldn't it be incredible if they had FCS there?) there may be a more steady stream of Dollfie stuff in the American market.
There's also a store called 'Doll Hobby' or such along the lines, and they carry Volks and acessories including Mr.Super Clear. Which is a sealnt for face-ups, blushing and such. You can't go to a normal hobby store to buy this stuff, thought there are alternatives.
Or you can try to track down the actual manufacturer of the doll (Like Volks, Luts, Dream Of Doll, Happy Doll) and find their site. Many times they may offer it in English as well as Japanese or Korean...
You can always use this nifty tool to translate your URL's!
World Lingo - TranslatorYou may have to guess sometimes at what's being said, but most of the translations are pretty good
Personal Notes: Right now I'm trying to make my own BJD, and I'm looking into getting a DoD down the road, my DoD will cost me probably over $600 canadian, and he is a MSD size). Don't forget to check your grammar and spelling! It can get difficult to read...