Arriving a bit late too, but if you look at the air losses you've posted above, the 90 ops losses (plus the 47 air to air) suggest both Allies CVs are gone. This leaves him with 2 CVs for a couple of months, perhaps in San Diego or arriving there soon. Try to send a lot of subs over there. You might get lucky when he tries to move out, and anyway, it will make him prudent.
In the end you traded one CV, and KB out of the game for a couple of weeks (time needed to refuel, move back to a shipyard, repair the least damaged boats, and send it back into war), for half of his CV force, and, more importantly, a lot of very good pilots. Not a bad start...