David`s Bridal Bridesmaid Gown

Well, unfortunetly, my sister-law chose this bridesmaid gown from David`s Bridal. I haven`t been very impressed by their service and I really don`t have the money to spend on the dress and all the accessories she`s insisting on. I was wondering if anyone had a slightly used Style F1422 in the victorian lilac in size 14. I know this is a large request, but I am desperate and thought it might be worth a try!!!!
Thanks!
Maggie