It's a pretty big job if you haven't done sheet metal replacement before, but pretty easy for an experienced body man. They were spot wleded in from the factory, and you could spot weld them back in if you have the equipment, but the factory spot welds were much larger than what most lower priced hand held units create so it probably wouldn't look 100% correct when done. Plug welding might be easier, drill a hole to match an original spot weld dia. then match and clamp the panel, fill the hole with wire weld, then grind and finish to duplicate the look of a a factory spot weld. Works fine for most.