The Tamiya 1/350 KGV represents the ship after her aircraft handling facilities and catapult were removed and replaced by a theater and a boat deck, and the external degausing cable was relocated inboard after her 1943 refit. The You Tube video shows the KGV early in her career, when her original dazzle camouflage was painted over with a neutral gray. This is how she appeared during the Bismarck chase.
KGV carried different camouflages depending on the period you wish to model her. The ship was completed in an unofficial camouflage scheme based on the WWI "dazzle" scheme. This consisted of Admiralty Dark Grey over Admiralty Light Grey. By late 1940, this scheme appeared very weatherbeaten, and she was repainted an overall medium grey, which she carried until June, 1942, at which time she was given a new, disruptive, camouflage scheme consisting of four colors, which was replaced by the Admiralty Standard Scheme Type B with the dark grey rectangular hull panel over medium grey for the rest of the ship. This was also replaced in 1945 with a medium grey hull and light grey upperworks.
I will be happy to send pictures and charts if you contact me with your email address.
Good luck!
Bill Morrison