Hi and Welcome. anything is possible with enough work and talent (or money to replace talent) I am not sure about the gearbox but as my dear old Dad used to say "Mr Ford is very clever by making most gearboxes fit most of his engines".....just not sure on the more modern stuff. How plentiful are they over there as here you could buy the bits for nowt and just offer them up to see.
You may want to explore if the blocks and things are similar. Why would you want to put that engine in by the way, there must be millions of Focus engines sitting around in breakers for peanuts and you know they WILL fit as that's where they came from.