#PRF-30812 Painless Dura Spark harness and AAW also make a replacement harness. ( American Autowire Dura spark harness #AWW-500918)
Not Bronco specific, but I have used both on rewires.
Just bought the Painless one, since Summit doesn't seem to stock the AAW one anymore. Modified it (lengthened the wires) for my 79 Bronco. Just a thought...