I too love this workflow, very powerful. For clarity’s sake, my workflow is similar, but I try to keep as much of it in Tinderbox as possible (see image below). This way I keep all the rewrites in one place (I have had an automated drafts method setup that gives me over 50 verbal affirmations each time I create a draft).
One day I’d love to learn the other tools and play with Latex, but so far I’ve been able to centralize nearly all my work through Tinderbox.
The key success factor in this, for me, was to focus on the separation of content, structure, and appearance; to learn markdown, HTML, CSS, and regex. It has taken a while, but I’ve boiled my temples down to just a few cascading templates that can create outlines, pull pictures, and tables, adjust to apa and Chicago styling, import in citations, and more.
I would really love to see your process in action. Maybe we could schedule a call in a few weeks or you could share it during one of the meetups.