Thank you. I think I already have a large piece of extra-strong glass that could (hopefully) be cut up into small panes for the new door. It is the single large pane in the door I have just replaced. I tried to break it with a hammer once, when I locked myself out - and couldn't. I was amazed. (Mind you, I didn't strike it will full force, for fear of disturbing my neighbours.)
I wonder if I can cut it into smaller pieces? Will a regular hand-held glass-cutter (type with a small wheel) work? I guess the answer is to try.... If trying to cut it is going to be a major PITA, I may as well go to the glazier and buy the laminated panes ready-cut.
Yes, that might be an option. The other idea I'm considering is using clear (laminated) glass, plus a net curtain plus a roller blind (bamboo-type, so that one can see through it if one's eye is up close to the blind). The curtain will provide privacy during daylight, and roller blind can be dropped at nightfall. I haven't actually tried this combo yet. I will have to experiment. Alternatively, a paper roller blind with a tiny peep-hole should work.
Rich