I know it's not as likely as getting rid of him locally but just hear me out. There is one possible way they could have shipped him to New Jersey. They could have put him inside a sealed trailer and had a truck driver just pick up the trailer and deliver it to New Jersey. A driver back then would have known to keep his mouth shut. I don't remember where I read it but I do believe that the FBI did check out brother moscatos dump not long after the disappearance. Apparently they thought it was possible.