Upgrading to ESSMs, evolved sea sparrow missiles, will provide a similar range to SM-1s. While they won't have the range of SM-2s, and possibly not be able to aim as many missiles, there is a reason why the US Navy chose not to upgrade the SM-1s, and behead their Mk 13 missile launchers on the FFG-7 class frigates. You can also quad pack the ESSMs, providing say 32 missiles with an 8 cell Mk41 VLS, not quite as many as the 40 missiles of a Mk 13 launcher. Some ships had room and space saved for another 8 cell Mk41 launcher, which could provide 64 missiles.
I believe the Australians found this too heavy for their Anzacs, I would expect the same with other Meko 200s. However, I do not think there is so much a weight problem if the Mk41 cells are on the main deck, lower than the upper deck of a Meko 200. Such as the Dutch, German, and Spanish newer AAW destroyers and frigates with the missile cells on the main deck.
During the 1980s and 1990s, many missile systems were located higher up. It seems the new ships of the 2000s have their missile systems lower on the main deck, for example FREMMs and FREDAs, and Sigmas and F2000s.
I believe the Aster 30s will provide area defense capability too.