I'm looking for a hard top and found one at a really good price but it has a sloppy welded patch 3"x3" in the middle of the roof where someone removed an antennae. There was definitely some warpage and distortion from the welding heat to where that area is concave 12"x 12". I'm not afraid of some body work and paint but I've never dealt with fixing distortion in a large, somewhat unsupported panel like this. I know it can be done the right way with heat, shrinking hammers etc (skils I don't have btw). Is fixing this with body filler just a nightmare that will never be quite right and I should pass on this? My goal is a nice, not concours top. Thanks for any advice.