Looking at this mustang on Craigslist right now. It has a dent in the left rear quarter panel. How much would this be to fix? I find rear quarter panels on a car parts website for roughly 300. Is this bolted or welded on? Here is a picture of the dent: https://imgur.com/a/nSW3i

 

Its welded on. Best bet is show this pic to your favorite body shop and get an estimate.

 

Wow, right on the crease too

 

That can probably be handled with a paintless dent repair company. Way cheaper than a body shop (although some offer the service too) and you don't have to have the panel repainted.

 

Should be able to easily get to the dent from inside the trunk.

Hopefully most of it will pop out and it won't cost too much to fix.