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Wrongcog
Usually all the cable action is happening between part 36 and 45 on your map. Probably only requires that part to be removed, it contains the trigger (44) but that should be a sealed unit. 39, 40 & 41 are all you need, just use the shorter cable you have and follow all the colours in the current one. This kind of thing gets done on site all the time. Mind you on site they'd probably just pinch some Wagos from an electrician and cover it in electrical tape. Maybe you're a good candidate for battery tools :)
Have a look at AvE on you tube, it's much more fun watching someone else taking things apart.