AMD6769

Hi every one finally got a engine.And its a lq9 out of a cadillac it has a magna charger on it [ donor car] and going in to a 71 blazer 4x4 . What I want to know if that engine needs a certain kind of fuel pump or can it use a fuel tank & pump out of a 87-93 blazer .Also can the trany be used by changing the transfercase from the allwheel to a regular transfercase if so with one.The wire harness is kind of salvageable the fire didnt get to the engine that bad.Is there a pin out for an 05 caddy engin harness if not a good place to get one to run that engine w/charger. Any info is helpful thanks