hi mate thanks for the post! I’ve added some more pictures here of the connectors, added one also for the wiring return you mentioned. I’m in the UK if that helps at all - for where on earth I could pickup a replacement cream coloured connector?We need better pics of your connectors that show the latch and shell details. Is this yours? Look carefully, for example, are the two lower contacts wider than the top three that run to the stator?
The biggest problem with this connector is that it isn't sealed, which invites corrosion and contact failure. Crimped connections are claimed to be as good as soldered. But that assumes that you have the correct crimping tools, which can cost hundreds of dollars. If you're going to replace both sides you might consider upgrading to a better connector.
BTW, I have a K4 600 service manual that shows a five lead R/R connector. But my K6 750 manual shows a four lead connector to the main harness and a separate three lead connector to the stator, the same as my K6 1000. This suggests that yours should be the same.