Hi 3L, welcome to the UK Chapter of craziness!  The 4WD is taken from the Euro Mondeo, US Contour.  Over here in the early MK1 models, we had a 2.0 4x4 Si variant which didn't nake into the later models.  Our guys in Bolton have principally used this setup with some custom fabrication for mounts etc.  I believe their is a similar layout in the newer Jaguar X Type's however I cannot comment on their compatibility with the Cougar. I maybe PM'ing you with interest in a few bits I saw on NECO 