torque box repair question

[Bolt on 5.0]

Hi I found this mustang I was going to buy the other day, one thing I noticed about the car is that the torque boxes were deformed pretty bad. I welded my last mustangs, but this ones seem tweaked a little more, does it matter the shape of the boxes are in in order to install torque box reinforcements?

I need to know before I buy this car, thanks