If you look very closely at the top end of the stand, you can see the piles of waste from the digging of the foundations for the small stand extension, which was required for the NPL (we went up by default after Shepshed Charterhouse folded, if I remember correctly, or it may have been South Liverpool).
We dug those foundations by hand. None of this mechanical digger nonsense.
I'd forgotten that we'd used that picture on the programme. I remember getting my copy from the club.