No longer charging found broken wiring
WHAT ARE YOU WORKING ON?
WHAT HAS BEEN DONE TO THE ELECTRICAL SYSTEM (in the past or latly)
if you want to get a harness. There is an " engine forward harness" some are modified for electronic ignition and / or electronic voltage regulator.
BUT you best diagnose what is the cause of the bad wire or you might just melt down a new harness just plugging it in.
Lastly there is too much other stuff in the way in your photo to really hazard a guess as to what the broken wire goes to
Mymopar.com has factory service manuals and wiring diagrams
classiccarwiring.com sells laminated full color diagrams