I just did this for the first time on GN and it wasn't too bad. I took lots of pictures during disassembly and lost all of them. 5 months went by before I started to put it back in and I was lost. Don't loose your pictures.
The wiring is no big deal, most connections will only go to one sensor or harness anyway, hard to mess that up.
Pay attention to the bolts in the front of the motor, this is where I ran in to trouble with no pictures. That got confusing but we made it through it.
Good luck!