Have you been playing with any mods? I've played 17 and 22, both with mods that let me set up tractors to do general hauling and harvesting. I basically turned them into factory production games.
PC, 22 with Coursedrive, autodrive, universal autoload, etc.
That's the plan, but starting from scratch. Still a ways to go before it's automated. I need to learn more about autodrive and how to actually configure it properly.