take the fairing off, take the center piece out of the factory clutch cover. set the fairing back on, dont bolt it, just put it into place. lay the derby that you just took off on the fairing directley over the clucth cover just like it should be. take a sharpie and draw around it. it will only be a half circle since part of the derby will be stick off the fairing to the left. take a dremel and follow around that line. you might want to make it bigger after the cut, just put the plate back on and move it over, draw around it a bit and cut. go to the hardware store get some door molding for 5 bucks and place it around the cut.
and your done.