Thanks for the input guys. I think I"m set on my plan now that I've pondered more about it.
Hey Jay! Cuz! If you get to yours before I do mine, please keep me posted on the process and progress will ya?
Tom, My plan is to cut the section just big enough for access to the dent. Rather than completely remove the section though, I want to leave a tiny bit on the lower edge of the section to bend/hinge it out of the way but allow me to accurately bend it back when I'm finished removing the dent. I plan on welding the section back then using filler to cover any seam blemish, then prime and paint.
I guess my confidence of working a patch panel on my door allows me to think I can pull this off...

Wish me luck! I'll keep you guys posted too.
Jerry