Here are the windows. Geoff writes:
"The original window frames fell apart so I just bolted 10 mm plastic directly to the cabin sides on a bed of UV resistant silicone - easy and cheap. The plastic conformed to the strengthened cabinsides as the bolts were tightened. I actually tightened the bolts too much and squeezed too much bedding compound out. Shouldn't leak. Just looks a bit odd. It's a black compound and you can see the white paint through it in the thin spots. Not the pure black border I wanted."