GR not for sale in the Netherlands?
Check tweakers.net which still has no priceavailable for any of the shops. Kieskeurig lists availability in 4 shops: camera.nl konijnenberg foto-klein en dewinkel.nl
There are some other shops that have it available for ordering (e.g. redcoon and other German/EU internet shops). But konijnenberg seems to be one of the few who has them in stock, and they also have the best price Unfortunately they don't have the WA adapter.
I have found the price listings from both tweakers and kieskeurig to be inaccurate or even misleading with the less common photo or computer gear. Sometimes products are listed as unavailable while there are plenty of shops that have them in stock, or they list just a few shops with a high price and not others with a (much) lower price. A bit fishy ...