I have photos of the 1971 Charger being built by the Elders, on a jig, with Chrysler Engineer Larry Rathgeb helping out. Now, if I can only find them. I'll post them if-when I do.. A fresh built 1971 Charger is a wider car than the previous 66-70 chassis. All the floorpans, the main hoop, drive tunnel, engine bay bars, etc. all are different. Those are the details that jump out when someone familiar with Nichels, Petty or homebuilt cars will see.