I have one with the key from a 71 Duster. I know that the Dart lock is mounted in the trunk lid and the Duster is on the tail panel but the lock itself should be the same. Not sure about he bar that connect the lock to the inner latch.
I've got the latch, the lock and key with the clip that holds the lock, the bar, the loop that the catch locks on to and the bolts. Everything that you need.