24 Valve cummins with a 12 valve front cover and mechanical pump and you would have a good motor to put into whatever you want. Easiest swap ever. one wire to the fuel shutoff and a throttle cable. You can get adapters for just about any bell housing to mount to a cummins. Easy to make major power and will still hold together. The new 6.7 worries me a bit. Very little metal between the cylinders.
The only thing I hated about the fords were the leaf spring front end and its terrible turning radius. Always had to park in the back 40 at parking lots because you couldnt get into a spot. Actually watch a guy who got stuck in his spot and had to wait for the guy inn front of him to come out and leave. Stock the engine was a dog but a chip really wakes them up.