$500? thats ALOT of work that needs to be done to do that. u need to make the panels match the bodylines almost perfect so a small amout of bondo is only used. plus u gotta weld it w/out getting too hot and warping the original bodypanel. then u gotta prime and paint and blend the paint into the rest of the color of the car.(trust me its friggin hard to do!) everything has to line up or its gonna look like shyt!