I searched the Internet Archive for Les Mémoires de Saint-Simon - https://archive.org/search?query=Les+Mémoires+de+Saint-Simon... - skimmed the results for items with the right number of pages, and came up empty.

I uploaded a new item - https://archive.org/details/memoires-de-saint-simon-nouvelle... - though I made a mess of the metadata. It's still processing.