Maggie Sottero Grace Kelly Gown

Hi! I`m also looking for this same dress... The Maggie Sottero Grace Kelly gown (with the same picture posted in the message above). I`m in Phoenix AZ and can`t seem to find any stores that have it. Does anyone have any idea where I can find it used or new?! I found this link from a store in Utah but it could take up to 3 months to get it and I`ll be getting married sooner than that! I would TOTALLY appreciate any advice! Thanks,
Jill