Duster Collision repair

I'm not sure I would replace the whole 1/4 for that damage.

You have access to most of it from inside the trunk and a damage dozer should it get it pulled enough to be able to body work.

Replacing the entire 1/4 isn't really that easy and you have a lot of measuring and considerations when replacing as big of piece as a whole quarter.
I have done both ways and done right either way will work but a whole quarter replacement has advantages and disadvantages as does the other way.

Good luck and never stop moparing