Recently hit a deer and smashed up bumper, trying to find replacement 2nd hand bumper for Mk4 Mondeo 2.0 Tdci Ghia, but can only find mk4 without parking sensors, will I be able to use standard bumper and fit my parking sensors to it or is there specific brackets within the ghia bumper.

Good question! If you go onto www.catcar.info, and enter your vin, you can see all the components of your car, and you can drill down to the sensors and see all the parts and part numbers associated with them. 

The bumper cover is the same.  Even has the sensor circles marked for precision drilling.

 

Sensor above fog light:

 

No sensor fitted:

 

However, there is an additional bracket plastic-welded on to factory bumpers for the outer sensors.  Parts list doesn't give a part number for this, so may not be available new.  Hopefully they're salvageable from your old bumper.