I've been working on the graphics/textures and redesigning a few parts.
First off, I thought I would try to make a solid suspension piece, sort of a quick build version and to make it easier to scale down to 1/100 for those who might be interested when the design is finished.
I also changed the overall color to match the darker green you see in museum pieces. I'm not sure how historically accurate it is, but I think it's closer to being an authentic color now.
I've been surprised how difficult it is to find a picture of the interior (at least without buying a book dedicated to these vehicles). A lot of the walk-around pictures are of the outside at eye-level, and none are from above.
But I think I've improved the look of the interior compared to the previous test build.