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http://www.audiworld.com/tech/ext43.shtml "
yeah that's an easy fix. Its when there is a big dent or chip that its curtains...
If you go to one of the bigger Autozones or Pepboys there should be a body shop section where you can get a sample pack of high grit count sand paper.
Follow the instructions religiously. It's time intensive because you have to wait for each coating of bondo and primer and paint to dry FULLY.
And when you order the Wurth paint kit make sure the nozzle works before you get into it. Those cans come from overseas and I guess I got one that was damaged because 2 hours into the job I was ready to paint and paint wasn't coming out of the can...grrrrr. Had to wait a week for a new can to come in the mail.