Flares / Rear Window Pop-Outs - Sprinter Van Build: Research Plans & Progress

This is both one of the things I'm most excited about and one of the things I'm planning to build.  I scratched the idea of buying a fixed rear window flare because they are bulky, add limited space, are expensive, and don't look tight.

I found this video of a guy (Dirt Lifestyle) that made an amazing aluminum tilt-up gullwing window.

My addition will be 2 parts:

1 - Add small glass sliders inside the aluminum wing.

2 -Make boxes that can fit under the wings and against the van sided when the wings are up.  This will give a massive 18"+ inch extension - per side!  More than needed for full stretch side sleeping.