This is the episode 8b of the
"Life and Times of Scrooge McDuck".
There is one redrawn panel : the inside of the
Saloon, from "Back to the Klondike" (OS 456).
Then, I wanted to quote this drawing Don Rosa made to illustrate "Hearts of the Yukon", to compare with Barks' oilpainting "Always Another Rainbow" :
Panels from "Back to the Klondike" are used in "Last Sled to Dawson" (AR 113), and in "The Coin" (F PM 99001).