Building for pulling, and Powerstroke comes up?
It would be an ultimate puller to have a DT360 in it. Simple, and lots of power potential. Just have to fab up the mounts, and pretty much everything else. Check out some of the sled pullin sites, and what they can do to a 360.

 

another option, which i never support but nonetheless, its an option, is to put that body on a chassis with the drivetrain you want.

 

I put a 3-53 Detroit in my 3/4 ton International. Needs more power but does run well. Top speed governed at 70 with a 3.73 rear. A 4-53 with turbo would be nice, and differant too.