Wiring harness question

I am wondering if anyone on here can tell me if this is the only option avalible for a "new" wiring harness? I dont really need the full wiring harness but basically just the rear of the harness. From where it comes down by the pedals to the back of the car to the taillights. I was looking at my original harness that is in my car and there looks to be some damage to the wiring. I have all the interior and carpet out of my car because i have been fixing the rusted floors and thought it would be a good time to check over that wiring. Below is a link to autokrafters only wiring harness i could find when searching online. It says universal but really not sure if it would work for a 73 Gran Torino. Thanks in advance