I could not work on it outside so I dragged it in the garage. I found a model number on the body. Then I re-checked the measurements and looked it up online. When I measured it at night in the snow, it was the right size. In reality, it is a 60" cab to axle body. Online shows this includes the 3" space between the cab and body. My truck needs a 56" cab to axle body. For the price, I couldn't find what I needed. I had to decide to scrap it or make it work.
So .......
I cut 4" off the length of the body. Welded it back together.
Still have to:
Replace the pans at the bottom of the boxes.
Replace rusted bottoms of the doors.
Replaced all lighting with LED lights.
Replace all door handles with stainless handles.
Plan on painting it a darker color instead of trying to match the paint.
Replace bottom door skins and cab corners.
Darker paint will continue on cab at bottom and over front fender flares.