That really seems like a lot of work with different truck body widths and cab heights, getting the right wheel well placement compared to the back of the Tundra, matching the frame width and length to support it properly etc, etc, etc. Then restoring the Chinook itself. Wow.
I'd love to see one of those conversions, but wouldn't it be easier to start from scratch and build one?
I only exaggerate enough to compensate for being taken with a grain of salt.