I have been playing around with this some time and now Portsmouth Bill has taken a interest so I will post a very early concepts.
In 1960 the idea was being floated around that Australia should modified the DDGs to get some helicopters to sea on small ships
At this time we had 27 Wessex ASW helicopters which were operated from the Melbourne
The ideas was that one 5 inch gun would be given up so a 1-3 helicopter could be operated from a DDG, it was contended that the after boiler room / funnel may have to be given up.
I have tried to fit in the Wessex and keeping the after boiler room just moving the Missile Launcher further back, The problem is the operating envelope for the Wessex makes it all most impossible to do So the next design is to remove the after boiler room/funnel so we will have
Flight deck, Hanger, Missile launcher, Mast for the SPS 52, Not sure where I can put the SPG51s
The drawing that I have used is the Australian DDG 1990 ie with the gulfs war modifications, CIWS guns / RIBs
Please feel free to add you ideas