The one at Aeroventure has progressed a log way since those photos were taken and now looks virtually complete.
Several Sea Kings in a yard at Southampton since late last year,all partially stripped and some definitely restorable if you have the patience and the new Haynes Sea King Workshop Manual to hand ( not kidding!).
However I would prefer to wait and take my chances for a more complete example. Good luck though with persuading HMTreasury and MoD Disposals to give any away.