definitely do the PDR approach.

Most car dealerships have a dent man that comes around periodically to fix dents on their new lot cars that have happened for various reasons. where I live he is called the Dent Doctor and I was lucky enough to get his number. He uses a small hammer like tool and taps from the inside out. He has fixed three different cars for me (2) BMW's and one R32. I could not tell there was ever a dent on any of the cars. Worth looking into. Cost to me? $40 per car with one being fairly difficult. Ask around

Thanks; but the dent man had to drill a hole to get inside your door, correct? That's what I'm trying to avoid. I may try the Ding King once the weather warms up.

only if the tech has no way of accessing it from the top of the door or through one of the drain holes. ive done plenty of dings on my car where 99% did not require drilling.