Callista 4150 and 4092

I wen to a bridal boutique store today and tried on some dresses. Of course, the two that I liked best are out of my price range. :-) Oops. I've been looking around online to see if I can find them for sale used but am not having any luck so far. The Callista line is just for curvy brides and I'm a bit surprised that I'm having such a hard time finding them online. Maybe I can find some similar dresses at DB. :P