Engine Bay Wiring Help – 72 Challenger

My engine is out so I`m cleaning things up in the engine compartment. Decided it might be a good idea to replace the wiring.
Got a couple new harnesses but they are different from mine.
Anyone out there familiar with engine bay wiring and the differences. Anyone have or seen harnesses like mine ? Are they normal ?
Car is a 72 Challenger Cali built 318 AT 904 PS /PB /AC.....has points ignition.
Pics of trans and engine harness......they`re laid out and labeled connectors. There`s also a...

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