I just crashed my ford mk7 titanium 60 plate, in to my cousin so we're not going through insurance and I need to get it fixed, I was thinking of putting them new facelift front bumper and lights on what do I need and can I do it? 

You will need bonnet, front nose, lights (plus plugs as they are different I believe), fog lights and grille. I think the cost of a new bonnet would make me just stick with an original bumper tbh, but your choice obviously 

if you don't have LED daytime lights and get lights with LED daytime lights in you might need to think about wiring (the LED daytime lights are also used as the sidelights and go dimmer when you move the switch to side lights). 

Look on utube, I saw several videos on this conversion earlier today.

I was looking into this before, this video seemed to be pretty informative, not got around to doing it myself though...