1964 Mercedes coupe that I wanted to put the driveline from a 2001 W220 S55 AMG into.
Hm, i think the hardware will be a problem, because power steering, power brakes, axles and many more things are completey different. But the main topic will be a lot of electronic issues. First the ESP/BAS and some other things are interacting with the ECU/TCU and the KI. In my opinion there's no way to sepereate them.
Maybe it would be easier if you take a driveline from an earlier v8 car that has no ABS/ESP/BAS etc.
Good luck and regards
Markus