Since the ad has been removed, I can't view it, but based on the responses I think I know which one it is. If so, I've seen that ad go around a few groups I'm part of on Facebook. It has been determined in those groups it is indeed a scam. Once person even stated they contacted this "seller" in private and flat out asked if it was a scam. Apparently the "seller" responded saying it was and they just wanted some help pulling it off!
Some of this is hearsay, so take it with a grain of salt, but this ad (if it's the one I'm thinking it is) has been removed from a number of Facebook groups already, cited as being a scam.