As far as I recall, Dollpark was a reseller of both Mechadoll and Dreamdoll, and so was Andree Schulz. It seems that those worlds have been split. The small picture on the Dollpark website that links to the video, shows a Dreamdoll face, but the brand isn't offered on the site. I can't find them either in the Dreamdoll reseller list. Dollpark offers Mechadoll, Teddybabes, and (if I'm right) 1st PC dolls now.
Andree Schulz is now the official German reseller of Dreamdoll. He announced that Mechadolls are no longer available, see this post by zazakell:
http://ourdollcommunity.com/forum/index.php?topic=1724.0Oh boy, what happened to zaza. I can't stand being clueless.
If you can visit them and buy a doll from the showroom, there is little risk. If not, I wouldn't know.
If you can visit them, why not both resellers? You can find Andree Schulz here:
http://www.dreamdoll.de/Both are located in northern Germany, the one north of Bremen, the other north of Lubeck, so Hamburg is between them. Distance: about 2h 30' driving.