Dodge didn't do their diesel in-house either and also went with an outside supplier...Cummins. The 6.0 at the time produced more torque and HP than either the cummins or a duramax. But the emissions stuff and work-arounds killed the reliability. Poor maintenance just exacerbated the situation, starting with the Ford Gold coolant instead of an ELC (which International recommended). They might have avoided many of the issues by simply installing a coolant filter on every truck.
Anyhoo, this one has been debated/discussed ad nauseam. That's a nice looking rig for sure but no way I'd ever pay 86K for it. Geez, that 20k more than what I paid for my 2005 psd 7 years ago.
2005 E350 RB 6.0 PSD for extended fun
1989 Landcruiser FJ62 for local fun
2011 VW TDI Golf for hwy fun