tool for body curves

no not really. pic something that you can conform to that body curve, laying it against the side of the panel till it conforms to its shape. if you were using a French wheel to make that panel with that curve, this thing will tell you when its right.
i', just trying to get my gtr curve where it should be with a GOOD patch panel, NOONE makes a good patch for the 66-7 b body!!!!!!
if I was a REAL bodyman man, it cold be made 95% good easily, but I admit not being very talented with this. I might have to get it close as I can, and go beg one of the body guys closeby to make it O K!!!!!!