Forgot to add you need the engine loom, key and transponder ring for ignition, also need to mod the fuel lines, exhaust I can’t remember if the manifold is different.

Get the puma gearbox aswell it has shorter gear ratios to the 1.6 fiesta, if you can be bothered fit the 1.6 final drive gears into the 1.7 gearbox, it gives a final drive of 4.25 and makes some difference to the little cars.