you can't even get to the injectors on a 7.3L in two hours.
I can get to my injectors in about 15min. and its a 99 7.3L.
Military stand Diesel are expensive any way you look at it no matter what brand, find one you like, find the down falls, fix them before they cause more problem and you will be fine. And the cam sensor on the 7.3L is up around $100 and one good injector is up around $150 to $200 for one and the Cummins is $95 for one Edge Jammer Injectors. Some parts are cheap and some aren’t the good thing is if you fix the down falls and keep it well maintained it will go hundreds of thousands of miles.