You'll need custom shafts and mounts, you wont find any off the shelf.

Ive seen vauxhall lump into escort before but the mounts for the saab are different anyway.

Great engines but very heavy and the F28 is a heavy box too, so while its good for drag racing with the power they can make etc, I woudlnt want one in the front of a circuit car.

Ive got one in the boot of my nova, the weight doesnt matter so much there as its not in front of the front axle making the car want to understeer like mad like it will be for you.