also, as Bubbles says, the Victor's FI (fatigue index) is well and truly spent. prior to GW1, and i forget the precise figures, the Victor K2 fleet had their FI extended beyond what had originally been determined as officially 'knackered' to cater for the extra tanking demands on the UK tanker fleet - not all current VC10 Ks were in service at that time. effectively, whilst 558 originally retired from the RAF with very little FI left, the Victors ended up surpassing their projected life span by some margin.
Off the top of my head i believe the figure was 125fi or there abouts.
Oh and trust you to mention VC10s
