A little update for you Peircey. I managed to get the blank of by just undoing the 4 bolts holding the top of the bumper on (and the 2 wee 90 degrees screw thingys) and squeezing my hand in under the top of the bumper.
I have gay girly little hands and just managed to get my hands in to remove the blank. I am now missing a layer of skin on the back of each hand now though.