As requested here is a view of the Aeromaster decal sheet and instructions included with the 1994 issue kit of their Hayabusa. Of interest is the 20th Sentai example with dark blue uppersurfaces. The use of this colour, the subject of much debate, has now been confirmed by veterans from that unit. It was applied to a few aircraft engaged in long haul sea search and convoy escort duties in the Phillipine Islands. Aeromaster's instructions suggest a match of FS 35050 for the Dark Blue. I'm not sure about that but I have added it to the scan of the instruction sheet just for interest.
Image credit: © Hasegawa Seisakusho Co Ltd & Aeromaster Decals 1994