Why don't you try creating a sales thread here with the following details:
Domain Name
Domain Registrar
Expiry Date
Minimum Offer/BIN
Traffic proof (with domain displayed inside screenshot)
Revenue proof (with domain displayed inside screenshot)
To know how much the website is worth, you can leave it open to offers and see what you can get. To sell it safely, you can use a service like escrow.com or ecop.com, though a lot of the transactions that take place here don't make use of such services and rely on iTraders only.
crumblepie
NP Team