im sure if you post lots of pics, the datecode, and if you have the reciept, post pics of the reciept, and if you have the tags, post pics of them, and if you have the care booklet, post pics of that!
make sure to tell your hatred of fakes, and make sure the winner gets the reciept, care booklet, tags, and the dustbag. (if you dont have these things, dont worry, but do try to provide some other means of authenticity)
also, maybe have mypoupette authenticate it for you, and give the authentication certificate to the reciever.
i havent sold any lvs before, but as a buyer, these are some of the things i look for! hope i helped a bit!