If they get busted, do you honestly think they won't flip? This is how it will go down. They get busted and tell the cops it's not their stash, they are just receiving it for someone else. The cops say it doesn't matter, they will get charged for it unless they cooperate. They call you up and say the package arrived safely. You go to pick it up / meet them somewhere, and of course it's a sting at that point. You get arrested. When the shit hits the fan, nobody will be willing to go to jail for you, and nobody will be your patsy.