I have a 1976 cj-7 that needs some body panels replaced because of rust.I have lots of mech. experience, but no body experience. how does one seperate side panels from main tub ? use a spotweld cutter & knock panels apart? which spotweld cutter would be best to use? is there a instruction video that would help me? I’m anxious to start but want to do things right. can you help me?