6.0 in a 97 Yukon?

1 of my good friends just bought a 6.0L outta 05 chevy ss truck and is goin in his yukon and what type of problems or mods is he gonna have 2 do???

new computer, new wiring harness, and alot of homework to tie it into the factory yukon dash, if he wanted to just get it running a computer from that truck and a wiring harness from street and performance will do the trick, but the throttle is drive by wire and he needs the gas pedal too... its alot of work... the 6.0 is an LSX based engine.