Just to name a few, there is always something else. Fenders and gas tanks require a good band saw, a metal brake, an English Wheel, and a Planishing (sp?) hammer. Pneumatic cutoffs, die grinders, files, and chisels. There are also a bunch of specialty metal shaping hand tools which you don't find in many tool boxes. Shaping hammers, leather pads, dollies, shears, punches, etc. Metal shaping is an art that is acquired with lots of practice, many mistakes, and the loss of much blood.
Oh, if you only have a 40x40 ft. shop you will run out of space very quickly. Probably about the time you purchase all those frames and store them. Good luck. Many have tried this, and a few have actually made it work.