With 10 inch mini apes, unless you are switching from the drag bars to the apes, all you have to do is re-route the cables. But since you are going with 17 inch apes you will definately need new cables. Unfortunately I do not know where to pick any up at.
The clutch cable for a Honda CB550 is just a tad bit longer than stock, and is a direct swap, but I do not know if it will be long enough for 17 inch apes.
Now all of ya'll should have known I was gonna post a pic of the FireLizard in this thread. lol