In points, to keep it simpler.
1) You could deploy them (task forces) like that in wartime, but I doubt if it will work for peacetime. Even for SSBN's three is minimum to have one "on station, ready to fire missiles" (and one is en route - one way on another plus one in port). With four You still have one on station. Only with five You can have two on station. And by definition SSBN's operate on tighter schedules than the rest of the fleet.
I think it's enough to have on task force at sea. You could have for example one frigate detached to the "other area" as a kind of picket, but most importantly You will simply have maritime patrol aircraft that will do most of the job.
2) As much as I liked Your cruiser/heli-carrier idea, I'm rather unconvinced to cruiser/VTOL carrier. Kiev wasn't really a tactically succesful idea. Mixing aircraft carrier with "shooting" ship isn't the best idea.
3) Also, this "small AAW capability, lots of ASuW capability" doesn't sound really right. Maybe think (not layout, but in terms of armament combination - proportions, not exact numbers) about something along these lines (but for all-heli ship, not a VTOL).
http://en.wikipedia.org/wiki/Vittorio_V ... ss_cruiser
4) For one time APDAF really made the point.
If it hits in the right place, sometimes one is enough. Sheffield went down in 1982 just after being hit with one Exocet (but it was mostly to design failures). I've read that it's assumed that one Harpoon is enough to sink a missile boat, two for a corvette, three for a frigate, four for a destroyer (assuming, I guess, US meaning of these terms, and therefore approximate sizes of these ships) and to get DD out of combat even one could be enough.
On the other hand Soviets tended to built much larger anti-ship missiles - and for a reason. Their calculation was that they defenses of the US CVBG (one of the primary targets of those missiles) would down many of them, so if just one will made it through, then even with conventional warhead it has to be sufficient to sink even a large warship.
So while Harpoon weighs 519-628 kilograms (1140-1380 lbs), P-500 weighed 4500 kilograms (9920 lbs), including 950 kg (2094 lbs) of conventional warhead.