4 door mopar cars

Bodyperson said
I want to make a 2 door Chevy II wagon. And a short box elcamino

You are probably watching, DDSpeedShop is building a 2 door biscayne,big block. If you arent, may want to go look.
He has done a pile of tri-5 chevys. He starts by comparing roof lines between 2 and 4 doors. Somewhat of a hack but gets the job done.