What do you think of the condition of this 69 Dart firewall?

Thanks!
I was wondering about that dent on the driver side but as long as it's not a buckle that might indicate frame distortion I'm good.

For the seam it was literally gnawed down to make room for the 1 piece throttle pressure linkage. Not sure why they did it to the passenger side.

It sounds like I'll be okay cleaning.. Welding, sealing. The pinch seam to prevent water penetration.

Sounds like I have nothing big here. I'll take it down to metal soon.