This is one of three new sheets Lifelike Decals has released covering the Ki-44 Shoki. In looking at Lifelike’s website, I see most of their decals are available in 1/72, 1/48, and 1/32, but these sheets appear to be only available in 1/48 as of now.
Clearly, a lot of time and effort has gone into the research on this sheet. Ten different references books are listed and cited throughout the individual aircraft descriptions.
This particular sheet covers the markings of 4 different “Shoki” aircraft, 3 Ki-44 II Hei versions and one Ki-44 II Kou version. The recommended kit is by Hasegawa, although I’m sure they could be used on the old Arii/Otaki kits.
The 4 markings are as follows: