Very cool. I've been looking for a similar camper shell for my F250, with plans to remove the tool storage as well.
You might want to look into Lizard Skin as an insulation coating, instead of the sticky bubble wrap stuff. Lizard Skin is a ceramic coating that is sprayed in. I've used it on hot rods several times and it's amazing how much it reduces interior temperatures.
For an example...I had a '54 Ford car that I was driving every day. With all stock interior, on a 105-degree Texas summer day, it was miserable to drive in. I always keep a thermometer gauge in my vehicles, and the gauge was typically showing 125-degrees parked. Over the next winter, I gutted the interior and laid in bubble/foil water heater insulation, held in place with spray adhesive and metal tape. With the stock interior back in place, and the same Texas summer heat, it was still hot as hell, but the gauge never read over 110-degrees. So that summer, I stripped everything back out to replace some weatherstripping and paint the interior, so I sprayed Lizard Skin on the floors, doors, kickpanels, and underside of the roof. Re-installed the interior and on a 108-degree day, the interior temps were showing 90-degrees, even after sitting in the sun with the windows up for several hours. Anyway, I have a gallon of the stuff just waiting to do the interior of my F250, and the inside of the bed/camper shell.
Great looking truck BTW!