Just like post 2 and 4 say get a whole truck.
What I bought in 2010 was a 94 F700 5.9L Six speed trans had 107K
Air brakes, double frame, 10K Front, 22.7K REAR axles. Budd wheels
Cab & chassis was all that was there. Had 2 good tires.
I paid $2500 for this
I will say this, pick one that is Pre-computer (up to 1997)