The conservatory has now completely gone, just leaving a concrete based. The lino went in the skip and the ply wood floor went on the bonfire. There is a manhole set into the concrete for the drain, although goodness knows how you would have got to it without cutting a hole in the lino!
The stone from the outer wall has been stacked in the field out of the way and the pea shingle reused on the outbuilding. There was a surprising amount of work in clearing up what was left of the conservatory once the uPVC frame and glass had been removed.