The most difficult part is finding someone who does that for you. Accordingly, the whole thing is quite expensive. Here are some pictures of the upper floor:
Looks great! We are currently working on the topic. EG will probably be room-height glazing. Upstairs, we also had a frameless glass railing quoted. It was in the same range. Alternatively, flat steel. Similar to yours, but instead of the individual rod infill, just three "flat steel straps" across or whatever you call it.