I was thinking mid-late '70s. The Exocet, Kormoran and Agave were all in the same timeframe there. That said, other radars might be added might include something like the AI.23 Airpass II "Blue Parrot" as used on the Blackburn Buccaneer. This could add in not only weapon guidance but also terrain following. Hell, for that matter, why not consider a developed version of the Canberra as an alternative/compliment to the Bucc'. One could also give it not only ASW missiles but also maybe a pair of AIM-9s for self defence. If done in a later '80s scenario, one might even add in Kormoran 2s or Sea Eagles.