ESP has an online shop as well, so it's probably possible to order their Edwards series directly. I have no idea if they offer lower prices than the model numbers suggest though:
http://www.espguitars.co.jp/shop/index.html
http://www.espguitars.co.jp/edwards/index.html
Since these pages are in Japanese, you might also find help in the forum of ESP USA:
http://p222.ezboard.com/bespguitarsmessageboard
The search function works a little bit odd, because you have to carefully choose your options, otherwise you won't find anything, although it's there (e.g. threads about Edwards).