I agree(but then again,I would) to rounding out the fleet to 20/25 ships,leaving 5 stars to protect the RA.3 stars would have somewhat offensive ability's for deterrence.1 or 2 of the 8 ships you've proposed would be Capitol ships(levy's,why?because we can)to stop the next clan invasion,which should start in the next era or 2(IMHO). ;D
I also agree with your assessment for the smaller ships,as well as screening and fast attack flankers.This to me would give some faith in a balanced fleet that could cover what the Clan must.
If the PWS issue is still prevalent,I'd take a big step ahead'.A star of PWS for each ship.Yes,yes I know it might sound crazy.But 5 WS with 25 PWS would make anyone "hold ah'turn"(as we say in the biz)and that's not even talkin' about the fighters in their bays,,,,,,,one word,stagering.
And lets face it,we still can fight 2 naval conflicts at once,and any naval force to threaten' the Clan would be,,,,,,well,Clan. ::)