Ok, I have commenced the install with the hand of my good father!
Front bumper is easier than I thought to remove. You have to remove the plastic tray underneath, push back the wheel arch housings to get to two screws either side (removing the headlights helps here as well). Also pop out the plastic lugs on the plastic cover over the radiator. From here the bumper pops out of the front of the two quarter panels (you'll see the locating lugs when the headlights are removed - see pic)
The plastic blank is clipped in in two places, but just pulls away from the glue everywhere else - see pic (watch fingers with this, you can lose some skin on the sharp plastic edges of the bumper!)