Mori Lee Bridesmaid Dress 945 Or David`s Bridal 81123

So one of my bridemaids made a mistake with ordering her dress and now its not going to arrive until AFTER my wedding.

She is heart broken about this, as am I. So here I am trying to find the same dress, Mori Lee style 945 or a dress that looks as close to that as humanly possible. I saw one at David`s Bridal style 81123, that is very close it just doesnt have the corset back, so we`d happily buy that one as well.
I have 5 other bridesmaids so I don`t want her to be in a different dress because she is not the maid of honor. If anyone can help at all, you`d really make her day.

Ideally the dress would be in black, but I`ve spoken to a seamstress out her and she feels that the satin could be dyed if we have enough time. I need this dress BEFORE August 24th when I get married. She wears a size 8 in this dress, but we would be willing to have it altered so anything from a size 6 to 12 would be fine by us!
Thanks to anyone who has the dress, or suggestions on this!