See this book.
http://www.amazon.co.jp/gp/switch-language/product/4056045364/ref=dp_change_lang/250-1821322-5714659?ie=UTF8&language=en%5FJP
Title is “
Taisen Makki Kôkû Kessen Hêki (
Air Weapons for a Decisive Battle at the Final Stage of W.W.II).”
It contains “Kikka,” “Syûsui (J8M),” “Ki74,” etc. About Ki74, 29 pages, 25 photographs, and 10 figures (including a detailed cutaway drawing), but its three-view drawing is crude and small, and language is
Japanese only.
I hope you will make excellent models.
JY