A body 8 3/4" complete rear end with 489 third member

I pulled this 8 3/4" rear end out of a running Duster a couple of years ago. It is complete from break drum to break drum. It has the shock mounts and leaf springs. The pumpkin has the 489 case. This should be an easy bolt in swap for other A bodies. THis rear end was not original to the car so I am not exactly sure what it first came out of. It has the small bolt hole pattern, and has one legged high way gears. Asking $650 may trade. Rear is in Southeastern Oklahoma.
Thanks