To remove those nuts you need a box wrench. 22mm, short. Available at sears. Forget doing this by hand. You will probably not get them tight enough once you replace.
Oscar thanks for the photoshop man, but I am way ahead of you. I actually got this scoop with the desire to go to black Advan RSII. It's going to look even better as it will be way more open than OEM, and my calipers will be silverstone painted. I am also chrome plating all the rotor hat bolts, and picking up the brights with lugnuts spaced evenly with the 10 bolts with some open end bright lugnuts.
Right now the black looks like a blob... The semi gloss RS has more sheen. Once the chrome plated bolts and painted calipers are in there, it will look completely different. Those that don't like black wheels... I don't blame them. I am often in the same camp. But the cool thing to me now is to just have the wheel not attract all the attention on the car, get out of the way, and show the goods underneath (if you have the goods). All your eyes will be drawn towards eventually will be the top hat bolts, which... Not many people have, and the massive calipers... Which not many people have. Silver spoked wheels are on every OEM car. This will tastefully take it away from that.