1987 XJ6 series 3 - I need this wire harness

I need this wire harness am holding for my 87 XJ6 Series III but I don’t know the name, what’s the name and where can I find it please

Mine was kinda melted when I got the car. I just reproduced what was there and spliced in at the back of the engine near the plugs. Sadly wasn’t able to reproduce the colors of course but I left enough of the original intact one could trace it out if necessary