Obviously the grille should be removed.
Drill out the 4 rivets for the hood latch security cover. They are aluminum, it takes about 10 seconds to drill them out with a 3/16 bit. If you decide to replace them they are, you guessed it, 3/16 rivets. But if you decide that noone is ever going to force your hood latch open and steal your battery, you can leave the cover off.
It also helps a lot to remove the two diagonal support bars, or at least loosen them on one end so you can move them out of the way.