if im correct craig the gear box in the mondeo is an mtx75 which i was told will fit in the escort as it already has mounts for it. as for the loom and ecu if you buy an aftermarket ecu i.e megasquirt it capable of running turbo and n/a so put the engine in as it is for now save up for pistons and turbo ect put all the bits on then you dont have to worry about the management as you allready have it in the car.