We had a 1948 Chevy 2 ton grain truck on the farm. We also used it to haul hay, haul water, etc... It seemed to always have a few mice living in the seat. Hated that part of driving it. I also remember the drivers door would come unlatched on right turns!
Our hometown, SW of Minot, has also turned into an oil town. Lots more traffic, money, and crime than there used to be.
Sounds like you are making progress on your project. I was fortunate that mine was pretty much rust free. Best of luck and post pictures when you get a chance.
Know what you mean about the mice, I found about 5 inches of grain chaff, old wheat seeds, and mouse crap under the seat. Rusted stuff up bad. Ended up cutting up 3 different seat frames and piecing them together before I could upholster the seat. Good thing I have a row of parts trucks and pickups out north of the garage. Floor was rusted out too, not from the outside but from dirt lying on the floor and getting wet. It also had some roof dents from hitting the combine auger I guess. I will at some point get some pictures, not sure how to do it.