This map, I found here,
https://lroc.im-ldi.com/images/937taken by the LROC Lunar Reconnaissance Orbiter camera laser altimeters is so far the best scientific assessment I have seen for guesses as to optimal resource locations near Shackleton at the South Pole.
Shackleton is the crater rim SR-1, 2, 3 plotted, this is a safe traversal illuminated zone, as well as the de Gerlache ridge CR-1 etc. Water ice is predicted stable at PSR-1 which is permanent shadow and darkness