well in order to do something like this one would need to make a wooden buck the same size and shape as the completed body..that is to have something to use as guide to make the panels..
Then using the beater bag and hammers and tucking tools work the metal until one gets the shape..one will also become completely familiar with the English wheel as well..
Ferrari's were built this way at one time..As well as the custom cars of the 20's and 30's..
I would hope one embarking on a project of this nature would stay on the keep it simple side of things in order to have a prospect of a completed car..
for more info on what you would like to do..
I think it very worthwhile for a young guy to become skilled in this area as panel making is a skill in demand by those who are doing restorations..