What would it take to put a 2004 5.7 Hemi in a 2002 Ram 1500 with a 4.7? I have an 04' Ram 4 x 4 with a wasted body that I want to pull the motor out of and put it in a 2002 Ram 1500 2wd. I'm thinking computer and maybe engine wiring harness. This sound do-able?