I'm having an issue with the wiring on my truck. It's an 87 F250 4x4 with a carbureted 460 engine but with factory electric fuel pumps in the tank. Someone has cut into the harness and as a result the wiring to the fuel pump relay has fried. I'm trying to find either another harness for under the hood or parts of the harness related to the fuel pump relay. Even if I can get a factory part number maybe I can find a dealer that might have old stock. Any help will be appreciated.

 

Here is the diagrams courtesy of Vinny:
Attachment 284531
Attachment 284532
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