Isuzu as of 1945:
after beign damaged at Kwajalein Atoll in november 1943 Isuzu was recalled at the Yokohama Misubishi naval Yard in order to be repaired and converted into an anti-aircraft cruiser, in september 1944 she was finally undocked, having acquired a very disctintive appearance:
all remainig 5.5-inch (140mm guns) where removed and two more twin 5-inch (127mm) guns where embarked, the original light anti-aircraft armament was also landed and replaced by 11 triple and 17 single 25mm machine gun mounts (for a total of 50 barrels), the catapult was removed and the fore twin torpedo launchers where removed and the aft ones replaced by quadruple ones, depth charge rails fitted at the stern; the bridge structure and the mainmast where also modified, the two 100cm searchlights fitted on sponson of the tripod foremast where removed and replaced by a single one, fitted on centerline between n°1 and n°2 funnels, a type 13 air search radar and a type 22 surface search radar where fitted on the mainmast, a type 21 air search radar was fitted above the bridge, beign a model A7 instead of the standard A6 her antenna was bigger, an anti-aircraft command post was also added above the bridge, wich was enclosed and fitted with windshields; finally a type94 High-angle fire control director equipped with a 4,5meter rangefinder was fitted on top of the foremast, the RDF equipment was also shifted from abaft the third funnel to the foremast.
Isuzu was Sunk on april 7th 1945, the last of the pre-war light cruisers to be sunk (the last overall, Yahagi, was sunk less then six hour later during the same day while escorting battleship Yamato in operation Ten-Go)
this is the last cruiser of the Nagara class, so this thread is completed.
i've updated all the drawings in the first page with now Yura as of 1931 finally sporting the Yokosuka K4Y.
thanks to everyone who helped.