I need.

The "welch" plug that goes into the back of the 360 block behind the cam. It comes with a full freeze plug kit, but the one that came with mine got lost, and one that a fellow FABO member sent me for free, the Post Office delivered... in an empty envelope. I can't find one around here anywhere, and I'm not going to buy a whole new freeze kit just for one plug. Does anyone have one laying around? I would appreciate it. Thanks!