Thanks. I think I am doing something very similiar and will definitely stay close to bare text (Markdown). Your comment shows me that there is no escape from marking up text (places where sth was deleted or some auxiliary header) and working through text couple of times, probably making some copies along way.
> I'll also use diff tools built into Vim/Neovim
Diffing workflow is completely out of bauds for me, maybe will try to learn some new ways in close future (Vim/Spacemacs in general). If you could say some more on how you quickly see diffs, that would be great. Are you using version control for this?
As a side note, I see that it just takes time to tune mind to work efficiently with bigger pieces these days. Modern times, refocus req'ed.
Your comment was very helpful for me, thank you.