Right, this post is mainly for those who have been taking the mickey about my lathe related excitedness (that'll be Steve and Foggy then).
Having rung up Volvo and SPX and found 9996351 is NLA, with Anjo's dimensions a bit of random old locomotive axle was strapped to the spinny thing and we have CST0001, seen here
Foggy was kind enough to send me an express delivery "brown engine side" connector. This is labelled 'C' in the green books, and should carry wires 31->45 into the fusebox though has moulded on the back pin numbers 1->15. Hopefully this means 'D', the connector we are replacing won't have the numbers 46->60 moulded into it and it'll be a completely undetectable repair (it'd be -10 BKV points otherwise

)
I have a passion against soldering looms, so this lot should enable burnt out connector D repairs. The current setup's have lasted in our cars for 20 odd years so this should last another 20. Soldered tails in a car leads to fatigue and fracture, a good crimp is much better.
All thats required is to use CST0001 to pop out all the round connector pins
Insert

Pop

All round connectors out without damaging the housing
As I still can't find a source of these housings this is the best way I can think of atm. New crimps I have got, and should mean we are back to factory-ness. I'll make a spade removing tool in the next few days, I was going to buy one until I saw the price

Steve watched me remove said spades from another type of housing with a screwdriver at the pod weekend but it's really not a great idea.