Yep, thats what I started searching for. Nearly all the vehicles I could find I would have to rotate the windows 90 degrees to get the curve right, which would then cause the drain channels to admit water in.
I started poking around for step up style truck canopies with those little windows on the front, but couldn't find any tall enough.
The shape is fairly specialized - I bet you could a set off another bus!
Originally Posted by dgorila1
One idea I had about adding windows like that is to find a car in the junkyard with the appropriate sized window(s) and cut the entire window out along with as much sheetmetal around it as you can. Then fit this to your opening and weld/rivet it into place.