I found (after removing one fender from my parts truck) that it is a lot easier to remove the inner and outer front fenders together. Then you can turn the assembly over for much easier access to the bolts. I haven't removed the original front fenders from my truck yet, but I took the trim off (it is a '54, lots of trim around the grille), and ended up using a hammer to bend the fender on one side, the other I just used a Sawzall to cut off the piece of fender with the trim. A lot of the bolts are totally rustwelded together after all these years. On the parts truck, I also found that the fender welt had turned into "fender cement" during the past 50 years. It took a bit of pulling to get them off after they were unbolted.