Or if you have a smaller screw driver, you can maybe fit your hand back there with the bumper still on, just feel for the two screws. Or you could take your bumper off. I know it takes me about 2 mins now And another 2 to put back on.
As for paint, depends what look you want Patrick. You're pretty safe with ANY kind of Duplicolor paint. I've had good success with them.
The Wheel Paint is especially good. I didnt even sand or primer or anything when I painted my emblems gunmetal. That stuf comes out so nice and even too! (But I'm not telling you to do this, lol)