First method is the easiest, and that would be to utilize your existing 3rd gen ebrake cable and adjuster, and buy the swap cables from hawks.
You’ll also need a set of brackets for the rear end that hold the cables. You can source them from hawks or a junkyard ls1 car.
If you’re retarded like me and swapped over to a 4th gen e-brake cable, you’ll need a set of standard 4th gen e-brake cables
You’ll also need a bracket to hold the cables under the car