I dont think they totaled it because there was no suspension, frame or engine damage everything for the most part is still intact. Still the cost of labor is going to be ridiculous im thinking over 10k in labor, never mind parts and paint, I bet you cant even open the rear doors, I dont see how they are going to fix the cab. Sounds like your appraiser is a moron. that's easy 18-20k and you dont have a truck for months.. just dumb if you ask me.. Id be looking for a new insurance company after this..