At the end of November, I had the gas hob connected by Hagim Gas. As covered previously, I had to drill through the 20" wide rear exterior wall to allow the gas line to pass through.
I also ordered a conservation skylight from Clement in the UK. I decided upon the Clement 0, their smallest offering, which will be installed upstairs in the return in the bathroom ceiling:
It's of steel construction with double glazed panes: