Midwest Amphicar
Worlds Largest Amphicar Destination
There is some shape to flat rear quarters. I use english wheel in certain areas to fight the shrinkage that happens during welding. You can use a 5 inch round pipe and put some curve in metal too. Experiment, practice and enjoy. You will use some filler. Weld slowly. Clean your welds and cover in epoxy. Do like others do and call with questions. Later Dave the Wave