I’ve pretty much decided to forget the single wheel conversion so the diesel upfront cost is more palatable. I strongly suspect the new 7.3L gasser would be plenty strong but I really don’t want to be a beta tester. The 6.7 diesel seems pretty reliable now although I just read where some guy’s died on him after only 1400 miles! The oil was full of metal supposedly!
As for the wheels I think I will just keep the duallies and put on a set of 37’s. My fears of jammed rocks seems ill-founded or at least overblown.
I think some people buy a diesel because they need one, others because they want one. Either way I think what make you smile is most important. You can always change courses if you don’t get along with a truck 🙂 Enjoy the journey.