It's even worse than that....the 25 A400Ms intended to replace the Ks will also be, at least some of them, equipped as tankers, to replace the VC10s. FSTA was cancelled due to costs, over £1 billion per frame under the PFI. Not sure what, if anything, will replace the Tristars, I think 13 A330s sounds unlikely. Some new sets of wings for the K mini fleet will aim to keep them going.
At least the whole AT force will comfortably fit into Brize!