I'd love to see a compilation for P.G. Wodehouse's Jeeves and Wooster stories with the different versions of stories properly identified.
https://en.wikipedia.org/wiki/Jeeves#Jeeves_canon
It appears that the stories have gone through rewrites across publication history. Both between stories for the US and UK, and between magazine publication and anthology collection. Standard EBook has the a compilation of the latest versions of the short stories. However, the latest versions are the ones that were used as rewrites for story collections. Project Gutenberg has the anthologies.
Lots of possibilities here.