My recommendation based on experience is to find someone skilled in "Paintless Dent Repair"
I have had some tricky dents removed from a variety of cars and after 20 minutes work you can no longer see where the dent was. (None of these dents caused by me I might add!)
Not had any repairs done for about 3 years but my last bill was around £70 and the work was done on my drive.
Not all PDR operators are as good as others, so get a recommendation first if possible.
Good luck!