Invincible Class carriers recast as Strike Cruisers as counter for Kirov Class battle cruisers as RN has no battleships to reactivate.
Possible back story, because of Falklands experience RN realises that Hermes is a far more satisfactory and capable design than the Invincibles and designs, builds, commissions three new 30000ton carriers in the late 80s. This leaves the Invincibles surplus to requirements as aircraft carriers but still very useful hulls otherwise. Initially as the new carriers are commissioned the Invincibles are employed with minimal changes as Commando Carriers but then with the decision to acquire cruise missiles from the US they are refitted as strike cruisers while retaining their commando carrier role. With the new generation of quiet soviet submarines appearing in the late 80s it is decided to also retain the ASW helo role as well.
At about this time the RAN seeing the need for a capable escort for their new Tarawa CVS decides to adapt the Invincible Class Strike Cruiser into a multi role Command Cruiser to support the new carriers. The Australian ships differ from the UK ones in having many US systems installed, including changing from Olympus to LM2500 GTs, Mk26 GMLS, NATO Sea Sparrow, etc. The RAN ships are also designed for reduced crewing to save costs and have no facilities for Harriers and the ADF doesn't have any STOVL aircraft. Although there are only two new CVS the RAN builds three Strike Cruisers intended to act as task force flagships.
Extra guns, missiles, no ski jump helos only or harriers only a secondary not primary consideration.
Tomahawk, Ikara(?) Harpoon, Seadart and Seawolf, or Standard and NATO Sea Sparrow.
Mk45 5" or Mk8 4.5" in the bow, Oto Melara Super Rapido, Phalanx or Goalkeeper layered to provide 3600 coverage
ASW Helo Sqn, AEW Helo flight, Marine assault helo Sqn, Attack Helo Flight, plus a re enforced company of marines, maybe a detachment of 6 Harriers if space permits but not a priority.
Armament will depend on whether RN or RAN