I love it. I'd probably keep at least one of the forward turrets to allow it to keep it's role as a bombardement ship, but since we're going with missile conversations, I can see why you did it like this.
fear not, she will be the only one of the five sisters to lose all her big guns.
my idea, developeed in a loose timeline, is to have:
-1948-1950 BB-67, 68 and 69 (Montana, Ohio, Maine) completed
-1951, BB-70 and 71 (New Hampshire and Louisiana) construction halted
-1954-1958, BB-70 refitted with a Talos lanuncher (or two, i still need to figure it out) loses turrets 3 and 4
-early 60s, BB-71 refitted as a double-ended Talos warship, also fitted with tartar launchers, loses all main guns an six ou of then 5/54 gun mounts
-mid 70s, BB-70 decommissioned, BB-68 refitted with RIM66 and mk26 launchers loses turrets 3 and 4
-early to mid-80s, BB-67 refitted in Iowa-style with harpoons and ABL, retains full main guns armament, some 5/54 (still figuring it out) landed
-early 90s, BB-69 refit (i have yet to finalize this, but she may end up with main battery forward and VLS aft)