brother...believe me its nothing,....you, yourself wont able to find this after dry denting let alone others....
i have have experience of getting worse dent fixed on a silver car by an experienced denting expert who has passed away now...
but don't loose hope, consult people and find an expert dry denting expert, do ask him before getting the work started about the outcome.
i'm sure he would say that it would magically disappear.
they use heating up the place with precision heat guns...and then gently tap the metal with smallest of hammers for hours to fix it...
i remember similar damage took around 3-4 hours to be fixed.
Jail Road is place to focus for that.