I had a pretty large dent removed on my door by a Dent Wizard franchise my dealer (Ray Catena Porsche) uses.
If the paint isn't chipped or cracked, the chance of a successful repair is very high. Of course there may be certain spots on the body that are inaccessible, but a good repair person will tell you before the work begins so that you can set your expectations.
For the location you described, the repair person can stick a tool between the body and the rear wheel liner, or get access via the air intake vent.
Good luck!