Halogen Projectors to Xenon Conversion Question?




I know of a car nearby that is being wrecked/parted out by a wrecking yard, its a nice sedan thats been hit in the rear,
My question is this car has factory Xenon lights with washers etc and my wagon S211 is a projector halogen model.
Can I upgrade my wagon with the headlights and bar etc?
What's involved, is it a big job, is there a lot of parts & wiring that need swapping out?
Thanks in advance.


