If you fellows need sheetmetal for any of the '71-'74 B body cars, call this fellow, he does nothing BUT chase sheetmetal parts for these cars.
His name is Mark (not me) and his phone number is (970)-261-7039.
He is in Grand Junction, Colorado and has access to all kinds of rustfree '71-'74 B bodies.
He drills all the spotwelds to get trunk pans, floor pans, quarters, cowl sections, framerails, quarter extensions and the like. He claims it takes him 70 hours to get all the sheetmetal out of 1 rustfree car.
Mark.