Here are some images of how it looks now:
https://i.imgur.com/66BQ8am.jpg
https://i.imgur.com/qxMenjd.jpg
https://i.imgur.com/V7dMMsS.jpg

Any recommendations on fixing it entirely? I used a deadblow to get everything popped out enough to put another taillight in. I couldn't get the big one out though. I also want to close that gap by the trunk.

 

Not trying to be a dick, but the dead blow prob did more harm then good. The Metal will have to be replaced to look right w/o a ton of filler. If you don't care, just hook a come along to it and hope for the best.

 

That is a easy fix if you have the tools and a lot of time. Use a dent puller it will weld studs into your damaged area. but before then you will grind down all the paint off the area then get the studs in. Then you will use a stud puller along with a dollie and a shrinking hammer to bang out the metal to it's shape. After all of this you will then need fiberglass resin then sand and then use plastic filler and prime.