AMD quarter panel question

I'm in the process of building a die that can form the recess for the marker light. "Idea phase". Not sure if one will cut the opening and bolt two parts together to form recess. Or drill two holes in the panel and bolt together dies to form recess and then cut out opening (I'm leaning this direction). Concept says the more metal I have to stretch the more chance for warpage (of the replacement panel). But a hitch in the giddie-up says - trying to pull/form metal from a soft edge creates deformity and lacks symmetry for the final opening in the end.

Oh, I could use some very accurate measurements if someone gets real bored. Thanks


Identify the problem - fix the problem.