I have a 2007 C-13 Acert Cat for sale with around 614,000 miles on it and still in the truck. I don't have any engine history, but the truck will fire right off with no smoke or leaks. The one negative is that the ECM is metric. I would think a simple ECM swap would solve it? The engine was paired with a 12spd Meritor transmission.
I will have pictures and video by the end of the weekend.