here is the final form:
notable features:
double shaft (cba to draw it) driven by two turbines powered by boilers of a sort
bow and towed sonar
asroc
single helo hangar which can carry two or three DASH drones easily
i still cba to change to STIR though, it just doesnt look like the right sort
guess ill be rocking some weird hybrid mk 74/92 gmfcs forever