The window is finally assembled.

The last piece of glass has been cut and put in. The soldering to hold it all together has started.
The next steps are:
solder one side, turn it over and solder the other.
Stain the lead to look less bright.
Fill all lead pieces with black putty and then sprinkle with powdered chalk. Leave for 1 hour to dry. The chalk draws the linseed oil from the putty and sets the putty.
Repeat for the other side.
Clean the chalk and putty residue from the glass. Leave for a few days to set properly.
Squeeze the edges together and install.

FINISHED!!!!
I am worried about moving it, turning it over etc. It will be incredibly heavy and could break some of the glass. I have put in reinforcing bar.