Just wondering if anyone would know if you can take the regular headlights that come in the 1.6 models preface lift and put the xenons in if the car already has the headlight washer aswell or is it more complicated than just buying them and having them installed 

For a proper retrofit, you'll need to add suspension level sensors, a headlight range (AFS) module, some wiring and finally recode the car

 

I'm not sure if any modules (CAN gateway or BCM) would also need replacing. If you scan your car with VCDS or similar to can compare your car to those with factory fitted xenons to confirm.