67 front door curve - how to

[Mike S]

 I'm getting ready to install a new door skin on a 67. I have the correct tools for it but this will be a first time I'll be doing a Camaro door which has the inward curved edge at the front top. Anyone with experience have any pointers to ensure the edge folds nicely around the inward curve? I usually fold only a couple of 16ths per pass with a hammer and dolly to ease the folded edge into shape but the curve has me concerned on how to best approach it.

Thank you in advance,
Mike