Wanted: Maggie Sottero Size 14-18; Discounted

I am looking for several Maggie dresses. I am most interested in Maggie`s Monica, but also like Celeste, Cassandra, Evita, and Mariella with the lilac beading. I am also interested in Sarchi or Samantha with the lilac beading. I need to find one of these gowns at a discounted price ($500 or less). I need a size 14, 16, or 18. I`d appreciate any info from anyone selling a used, sample, or new dress. My e-mail is tai@canetravel.com.
Thanks.
Tai