Don't worry. It's real simple.
All you gotta do for the clutch cable is to try to find a way to "hold it down" from the motor itself. Okay, like you know when you hold the clutch lever in, you see on the motor itself a tiny little arm sticking out. You hold it with some pliers or anything you want in the "in position" That way the clutch cable is slack and you can loosen it from the lever itself. It goes on exactly like the ones on a bicycle. You move the cable around until the Hammer like part of the cable slides out from the lever. The one for the front Brake is far simpler. It is just a simple swap. And if there are any new brackets with your kit, replace as necessary. If you need anything else, let me know. Hope it helps.
Sorry for the long exlpanation.