just stumbled upon this:
http://www.astebolaffi.it/en/lot/754/23/detail
“Long cut of the original film The Shining containing the scene in which Wendy, played by Shelley Alexis Duvall, carries Danny, played by little Danny Lloyd. These cuts, given by Kubrick to D’Alessandro, are particularly rare because the director notoriously burned all the leftovers at the conclusion of the editing.”
hefty price, though 😦