Much better now.
I'll go from bow to stern too.
1) Perhaps You could add one more set of silos (that is, increase from 4 to 5) MAYBE, but I have some doubts about it;
2) Put there similar hind of stuff that is here:
http://www.shipbucket.com/images.php?di ... erdahl.png
And note, that there is a small set of electronics on the hangar roof.
(I'm not entirely convinced about Your choice of particular model of radar mast, but perhaps this one is technically feasible, so maybe someone more competent in this stuff should comment);
3) As klagldsf wrote: something like Meroka or RAM.
4) Fire Scouts yes, AH-63 no. Normally helicopters aboard frigates are for antisubmarine duties first, then
sometimes for anti-ship strike (Lynx with Sea Skua or Panther with AS.15TT or SH-60 with Penguin) or flying radar for guidance of ship-launched anti-ship missiles. Generally there is no point in putting land attack helicopters on a frigate.