AMD MAY still be making A Body sheet metal

the need to rework their dies
That's a possibility. After making the number of parts these dies stamp out, the punches need to be replaced, die blocks need to be resurfaced, then shimmed back to the original height. it ain't cheap making these stamped parts. I went years ago to the AMD center in Georgia to pick up a quarter panel. Talked with the counter guy for a while, and was told they reverse engineer the parts from an original part. At one time they were asking for people to send them original parts so they could get the pieces as close to original as possible.