Thanks guys. A small steps was made with scratch-building the Observer's fold-down armour plate. It was cut from clear plastic sheet and the window frame was made of a piece of lead wire formed into a circle and squashed. the handle is also lead wire.
View attachment 856812
I also added the remaining seatbelts that were cut from the decal sheet. Less than ideal close up but fine when viewed through the canopy glazing.
Progress is slow but steady as I try to spend at least an hour a day at the bench now.