1973 Plymouth duster under dash harness

Since you have 2, take the best one and splice in the wires that appear to be damaged, burned, etc. from the other. Match the colors. You will need to solder them then double heat shrink each soldered joint. I have a spare harness and used it to repair the best one. I did not offer it on line because I used it for that purpose. A shame the seller did that to you.