cutting out a rectangle is pretty easy...plus if you made your own panel and the buttons were closer together, that would allow you to move the p2 joystick to the right a little more to give you a little more elbow room. all you would really need to make a new panel is a drill, 1 1/8" spade bit or forstner bit, and a circular saw or something to cut a straight line.
trust me...if i can do it, anyone can