I just picked up a copy, recently published in August. It's all in Japanese of course, but has loads of good pictures of a tear-down, and also some cutaway drawings of parts I had not seen anywhere. In addition to the assembly drawings and wiring diagrams, specs etc. from the service manual. It's small format, around 150 pages, costs 1900 yen over here.

If anyone's interested I could scan a few pages and post them to give the flavor of the book.

Steve