A friend of mine has the whole set, about 80? figures all in boxes with the accompanying booklet.
These were only released in japan, and so the text is all in Japanese. They are wonderful figures and amongst the first sets Del Prado issued.

He is a professor of Asian Studies and collects Samurai figures amongst other themes. Unfortunately he can't display them, and is interested in selling them.
I may see him soon, and soc an ask if he has a listing for you.