WANTED - Romona Keveza 340 - Size 8 Or 10

I am searching for this dress for my fiance (RK340-size 8 or 10 - the one with the twisted straps and open back). I haven`t seen this dress (and promised her I wouldn`t look it up) but it is the only dress that I can see her totally light up about when she talks about wedding dresses. She has basically given up on finding one because we can`t really spend what it would take to buy one new. So, I would love more than anything to be able to find this dress for her. Can anyone help?