No doubt, the Cummins is a good engine. If you like the sound of a tractor.

And no doubt that any used diesel engine can be a crap shoot. At the end of the day I may very well just get a new motor and be done. What I have learned in my life is that everyone has an opinion. Each of us has narcissistic tendencies and for us males, we want to be right. What makes us unique is our wanting to be unique. In how our trucks look, sound and drive. What hardware, etc. What are the goodies. To each of our own. I had to make a decision to keep my project going and that includes using the 6.5. Now I want to have the best driving 6.5 truck around without using a computer or electronics. The engine will be, if not new, a gut check moment. And to be sure, my comments are not directed at anyone on this or other boards. Just a few people I have run into lately in my life.