Anything is possible with enough skill and/or $$. Is it an easy swap? I'd say no, as there is a huge list of stuff you'd also need, like a fuel tank and lines, that you did not list. Read this forum and there are several people who asked this exact question since I joined the forum last year. Many claimed to have the parts, none have posted a completed swap. Just think how many F150 gas to diesel swaps have you seen? There must be a reason that's not common, and those are the most popular vehicles on the planet.

My buddy has a Toyota minitruck chassis, extended with the back half of a 2nd cab and a flat deck out back. This sits on FJ-60 axles, with a 3.0L V6 from a 4-Runner and Marlin Crawler Toybox dual t-cases and steering. Mind you that's full custom crossmembers, engine mounts, e-brake and everything, starting with a bare frame. If you are able to tackle something like that, go for it, otherwise you are way better off selling your gasser and buying a diesel.

Whatever happened to the guy with the 6.0L chevy in his raider? That was a cool build.