You can get them cheaper shipped by placing single orders through amazon.de. The price goes down if you are able to get multiple ones together. They come up for sale nearly every day. You just gotta be on your toes. Nintendo.co.uk doesn't even ship to the US.
I got the green and pink on the same order. The blue was taken out of my cart before I could finish. I went for them instead of greninja, since I was searching without a link and couldnt find it. Maybe the pink came back in stock inbetween.
That won't work. The only thing that might is one-click checkout. The best bet is to pick one and hope it works out, then move on to the next. Have browsers open for each one while auto-refreshing.
I was just able to get an order for that version at walmart the other day. I would set up a page alert and keep checking. The only version I have to offer is PC.