WINDOWS AND HINGES
I order four of these hatch hinges, two for each door. A little shiny chrome couldn’t hurt.
This is a insulated slider with a screen. It should provide plenty of extra interior light.
ALL LAID OUT
Here is a window and a couple hatch hinges laid out on a door skin. This should look nice once everything is all cleaned up and trimmed.
The door windows slide open to allow for some ventilation.
There is also a sliding screen which is nice to keep out bugs or feeble bears.