The mondeo/escort blocks are the same size,only difference been the compression ratio/cams.

1.6/1.8 and 2.0 are the same size, no matter which one you want to fit, escort items will need to be added-oil pump/water pump, this helps when spinning the alternator and missing the chassis rails.

Ive seen 2.0 turbo zetecs in ka's, 1.6 S2 turbo cvh engines. When i started mine i was thinking about making it RWD but, again, how much do you want to spend.

I'm doing it on a tight budget.