[OrrieG]

Just from the photos it appears like there is rust in the cab corners, floor boards, lower hinge pockets, steps, maybe the eyebrows. I would also check the sills, lower rear of front fenders, curved piece behind the grille ends, cab eye brow, door bottoms and stake pockets. There are a number of threads on here that show the work involved in fixing those areas.

My next project will cost me 3K more but will be rust free, I am getting tired of spending all summer on major body work and not doing the mechanical stuff I really like. It all comes down to what you can and want to tackle, there are guys here gleefully replacing everything from the mid-line down because that is what they like to do. Check it out carefully.