742 Chunk and 70-72 Duster Rear Bumper (Driver Quality)

Hey Folks,

Looking for a couple parts for the 72 Duster. Prefer to pick up in person within a couple hours of the Chicago Metro area.

742 Chunk, preferably Suregrip/"Posi", peg leg is fine too, any gear ration is fine, though something in the 4.10-4.30 range would be ideal.

Also need a 70-72 Style Rear Bumper - Driver Quality

Thanks in advance,
Pat
I have a 8.75 742 case with 274 open gears I also have the rear bumper . I am in ohio