I have your attention now? From
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The Clarity (concept?) uses a V-shaped cut line, the Suburban might need curved or straight edges. It would depend on what happens with the lower rear quarter.
Air intake would be the rear side-window openings and a new trough in the end of the roof. Converge in depth and diverge in width to make a slot around the new tail.
I like the Magnum L-shaped hatch, but it might need adding length or shortening the Suburban top. All one color of course, and it could have a tailgate like a wheel-chair ramp.