If you go with a gasser you’re probably going to have to deal with the fuel system, wiring harness and ECM, motor mounts, and maybe the transmission. With a Cummins you’re probably looking at a lot of the same stuff needing messed with. I’ve never done it but it would seem like these things wouldn’t be compatible.
I’d guess that rebuilding and deleting the 6.0 would be the simplest plan. And I know a couple guys who have them that have a bunch of miles with no trouble after they “fixed” them.
