That edition (the Chéruel edition) is the first integral edition of the Mémoires. It's been OCRed a long time ago and has been available in text form for 20+ years. But it has almost no footnotes.
The edition I'm working on here, the "Boislisle", is completely different thanks of the richness and coverage of its footnotes (but the main text should be almost identical).
If it's public domain, you can create a new record for it on Wikisource once you think it's ready for the human touch. This is the purpose of Wikisource though, taking the messy automated OCR, and allowing volunteers to correct/proofread/format everything.
