Welding and Metalworking - Fixing bent windmill vanes

I have an old windmill I'm refurbing. The sheet metal wind vanes have various bends, creases, bullet holes, etc. They are all about 3-4 feet long and maybe 20 inches wide at their widest point and have a designed-in slight curve. Sorry, you'll have to guess at the gauge but its fairly stiff. I'm trying to straighten, some minor misshapes, a few others are worse. . Options include (1) hammer and dollies (2) shop press (3) English wheel (4) planishing hammer (5) metal shrinker/stretcher ? Could somebody tell me what would be the best method(s). I'd also like to know which would be most effective and useful and what the closest preferred secoond method would be. Equipment for options (2) through (4) all appear to be about the same cost- around the $250 range at Harbor Freight. Which would have the most utility also for other projects fixing, fabbing stuff around a small ranch ? Maybe the shop press (although I'm sure its slower than the other ideas...

Thanks, Bob

It is hard to say without knowing what you have to do. Each tool has it's specialty. Generally I would try straigtening the blades by using what you already have. You could probably get simple bends out by clamping the blade and bending or by hammering against an anvil or some other heavy, solid object.

If you need to fix bullet holes none of the tools you mentioned will fill the hole. You will need a welder unless you want to rivet a patch over the hole.

I would not go buy a power hammer or English wheel. They are fun tools to have and would be good if you ever wanted to make a fender for an old car from scratch since they allow you to form metal into compound curves.