I looked at the pictures again and found this.
The front vallnce is hammered and pushed back on the drivers side. it look like the drivers fender is buckled at the top of the wheel well. I am guess that raising the hood will sho that the drivers side inner fender is buckled as well as the radiator support being pushed back.
I would look this truck over vary closely before buying it.
After seing what I just described and if this is indeed the problems with this truck I would walk away.