Thinking of selling.

just about anything pre 1970 has gone up in price. When scrap prices were high a few years ago a lot of farm fence rows full of cars/trucks in this area were crushed.
That picture you posted looks like something from 50 years ago with the old barn and the two old trucks.
Those old barns are getting scarce also. That is a huge barn.
Hopefully you can keep the other truck for a later build.