I did body work in a restoration shop for years and could and would work out those dents and use a minimum of filler. A lot of guys in the rust belt would be happy to start with a fender that good. First of all , the pucker dent in the middle was caused by the impact in the front. If you some how reverse the impact in the front, the pucker dent in the middle will try to relax and stretch back to its original contour. You will need to bump it with a small 2 by 4 block and hammer as you work out the front damage. Best thing to do with the front dents would be to use a porta power and small block against the deepest back sides of the 2 front dents and push the dents out. If you don't have a portapower, a big hammer and block of wood might work. Do some finer messaging with a smaller hammer and dolly when the big dents are reversed. It might be a big help to remove the headlight bucket and fender brace to give you more access. Believe me, those rounded heavy gauge fenders message out nicely if you are patient and avoid just pounding out damage.
