quarter panel replace ment

I hate butt welding, but it works. No epoxy, no expensive flanger ($$ for one that works off air). Set new panel over body, Figure cut lines, then cut both , old and new at the same time; use 3/16" blade ( a Bosch jigsaw is perfect). Then gas mig; dab, dab; wet rag, to keep any distortion pulling inwards.(when welds cool, they contract).Full weld it, seal the inside, and stronger than original metal.