I want to see a sprinter that can do this...
We each have our own ideas of fun. I can take the heavy toys with me, or I can take a cool convertible that can go most anywhere and parallel park in a broom closet. Can’t do that with a one ton.
Life would stink if we all had our choice of model T in any color, as long as it is black.
Now back to the OP, most engines before ‘07 were serviceable. There were a few Cummins with CAPS fuel system issues, 3176 Cats, and such that may not have the best reputation. The newer emission engines after ‘10 seem to be better with the exception of Navistar, and mixed reviews on the Paccar.
As far as service availability, there are many truck shops that are open 24/7. Try finding that for a LDT. Where I am, there are plenty of Ford dealers, but it may be a month before they can look at your Super Duty.