The core support wouldn't take much to cut out and install. 'With the right tools'
If you don't have the tools, then it becomes fun, having to have it trailered around to places to get shit done. Does it run? Then it's not that big of an issue.
With a new core support, everything should line up and go back together like new. Maybe find a new bumper reinforcement and any other part that may have been damaged there.

It really ripped the reinforcement off of it didn't it? lol