I want to build the japanese Type97 Chi-Ha for a campaign... This is what I have:

I want to build a diorama inspired by this picture:

(picture is from: "ArmorCollection 1998 5 - Medium tank Chi-Ha"
My problem is, that a couple of the hatches are opened, but as with most Tamiya kits, the interior in the kit is ... well .. non-existing.. so I want to scratch the visible parts of the interior ... but after looking through 4-5 books about japanese armour, and googling like a maniac .. I haven't found a single picture of the Chi-Ha interior ..
Can anybody help me?
Thanks in advance!