The build

Looking on the bright side (you have to), the pink pipes look like an octopus crawling across the floor.
I'm afraid to ask what went wrong with the windows.

These big pointy one      (First photo I got too) . Have to be opening. In case of fire. 

Really not looking forward to fitting them again . And more difficult this time around as the windows are coming fully glazed.

That's a bummer! Is each pointy window a single pane of glass? Hope the hinges are strong, if you should need to open them. Shame you can't put an emergency exit in the side wall instead.
Did the helipcopter come to check on you? Great photo,

Old windows are in 2 pieces a triangle at the top and a big square at the bottom. New windows will have 2 rectangles instead of the square as that size was too large to be opening.

That helicopter was landing at one of the other houses in the village to pick up the wife & kid when they finished their holiday.

That makes sense! Can you reuse the old windows somewhere? Shed, GH, even a coldframe?

We’re going to give them to a friend who is going to help with the swapping and is planning a conservatory

Hope the window swap goes well, they look huge to handle. It’s good to hear you have help.