1917 touring- door skin removal

[Bruce_MO]

What’s the easiest way to remove the skins from the wood door frames on a touring? I see they’re nailed on with lots of small nails. Grind the heads off, or get under the tabs on the skins and pry? I may reuse the wooden inner frames on two of the doors, as they’re in excellent shape. I need to remove the skins to get at the back sides with dollies and other body tools, as the doors are all very wavy and beat up. Thanks