@jean or potentially as part of your process (between sections perhaps?) you could type up / brief edit / review that section, do a regroup, then go back to the notebook. That way you’re “only” out 10-30,000 words rather than the whole thing, if something happens… and you don’t have a mountain of transcription to do at the end of the project…

I still have a typewritten manuscript I need to get round to typing up on the laptop. It’s a hurdle!