J Body Underdash Wiring wanted

I bought a great looking 80 or 81 J Body underdash wiring harness from Jasperjocko. I find I need another one for some correct size/color code wiring as I'd like to fit it to an early A Body. A somewhat hacked up one should provide what I need too. I suspect an early 80's M Body might be the same/very similar.
Author: 65 Dartman