assassin's creed 2 master assassin edition xbox 360

I am looking for someone who may be willing to part with their copy or preorder of the gamestop exclusive limited edition of assassins creed 2. I would prefer to not have to pay an exorbitant amount over and above the asking price but am willing to go a little higher than normal. and if at all possible, quick shipping, especially if someone ordered from gamestop's website and it could arrive very quickly (such as changing the shipping address to mine upon winning the auction. thanks