All places (except for back of cab) are typical rust areas. Once you begin to clean and cut you will find more so dont get discouraged. All in all it does not look too bad from the pictures you provided. Find a good cowl piece in a junk yard out there and use it.
I want some ideas as to why the area rusted on back of cab? Might that have been leaves and debris trapped in there or was there a different bed on it?
Or might the paint have been scraped that led to rust?
