Need A Sz 18W Gown Will Trade For A 20W

Hello ladies I bought a gown from davids bridal that is a sz 20W CINDERELLA STYLE DRESS, It is short sleeve, has a long train and it is very beautiful, And UNALTERED... It still has tags on it.. I will trade this 20W for a 18W new or used beautiful wedding gown.. I do have photos.. Looking to pay no more than 100.00 that is half of what i paid for my New dress that is originally 599.99 please let me know thanks