Pelle, I don't know where you're based, but La Maison du Whisky has a pretty good selection of Japanese whiskies available online at www.whisky.fr
and will ship to a wide range of destinations, certainly anywhere in the EU. Last time I looked, they had a full range of Nikka malts and blends, including the "Nikka Whisky From the Barrel", which really did come as a surprise to me (i.e. surprised at how good it was - cask-strength unchillfiltered blended whisky!).