mini dormer or prefab dormer window

Hey all,

My son's room has a square footprint of about 13x13 feet, but it's under the slant of the roof, so one wall is more like a 45 degree ceiling going from the main ceiling down to a little knee-wall that's about 2.5 feet high. The room has just one window on a far wall and is pretty dark.

My goal is to bring light into this room, and allow him to see out into the front yard and cul-de-sac where the kids play.

I've investigated putting in a large dormer in the slated ceiling - large enough to fit a king bed inside with a double window in the end, and tall enough to easily stand in. However - that's a pretty massive and costly project. I'm a DIYer - but that gets into complicated stuff so I'd probably need to hire several sub contractors (framing, roofing, window, etc.)

So I was wondering if there is an easier, simpler solution - maybe even something prefab.

The easiest solution would be skylights. However, from the outside, they have sort of a 70s look and I don't think they'd look right on my house. Also, rain hitting them might be really annoying to my sleeping son.

Is there a prefab, or something simpler that's like a mini-dormer? Perhaps something with a 18 inch normal window in the end and the whole box built already? Something where I could generally just cut a hole in my roof and install it? If it were smaller like this, I'd probably install two.

I'm thinking that something like this (just as with skylights), I wouldn't have to support it from inside the room - the existing roof joists could support the weight.