I apologize for speaking out of my expertise, I thought he was /just/ referring to the fact that it was a gold duster.
I have no idea what the rarity the specific combination of options it came with might be. Sorry.
This sounds so much like the 74 Duster I just acquired. He had hot wires and jumpers going from the battery to the coil and other random places... But when you take them off and use a tester on them, they were getting plenty of juice all along.