I Kind of agree with Pugsy. Experimentation is probably going to tell you what you can accomplish. A small diameter T-dolley may work to soften the sharp corners by holding it behind the angle and gently working down the top sharp edge. The gentle curve in the detail will be more challenging I suspect.
If you can get the door close enough that you can live with it, how about modifying the door itself below the belt molding? You could make a compramise there and nobody would notice.
Good luck with them. I hate what you have run into but like Pugs said, I am not surprised. Aftermarket stuff is really bad.