I was going to mention be careful where you attach the lift straps, but Iv never lifted an RB, and SkyUS covered it.
Oh! One other thing, does the skyline use a slip in drive shaft or is it on a flange?
If its slip in then make sure you drain the oil out of the g/box first, or it will spill everywhere when you lift the engine and g/box.
If its on a flange, then don't forget to undo it