I'd look for easy to weld points up front and I like to be closer to a body line for cutting the back area's.
Near or on a panel crease has less tendency for warping but it could be a matter of where the good metal is and isn't.
When I did my chopping I looked at a bunch of videos of other chop jobs and took the best idea's that worked for me.


Give me ambiguity
or give me something else