USDM Fiesta SE Front End Conversion?

I have a 2011 Fiesta SE and am hoping to get the more aggressive look out of my car. I was wondering if the front bumper on the USDM models of Fiesta could be converted to the Euro style MK7 front end? I know - well, I think I do - that the headlights shouldn't pose as a problem with fitment on account that they are basically the same, if not with very minor differences.