Are you planning to swap a trans with the 6.0?

Of course your looking at exhaust system, plus you will need to upgrage fuel system for EFI--------------A electric can be noisy, plus is your tank in the cab?
Get the complete accessory drive system with the engine ( I'm assuming a liftout from a salvage vehicle) along with wiring harness( engine, dash, etc) so you can operate everything---------electric fans, a/c, power steering, high amp alternator, ---------if you get the complete front mounted accessory package you will save $2000 or more just trying to hook up aftermarker stuff--------