Not answering your question directly (but will in another post) but here, taking a slight side-step: A Satan POV would be hard to write. We're having an interesting discussion on another forum about what goes on in the heads of immortals.
For example, a 500yrold vampire who participated in the US civil war, chatted personally with Descartes, and was signatory to the signing of the constitution... what attracts him to a highschool-range girl who's not yet travelled or experienced or even widely read. The discussion amounted to how can the author reasonably convey what's going on in this dude's head. Surely, even a lady vampire in her mid 100's is just as pretty but more on his tier, having survived two world wars and a Great Depression.
A POV from the girl's perspective is relatable to the human condition. A POV from his perspective requires the character to be humanized.
Granted we each see Satan differently, I see a diabolical genius. No way he's risking himself by doing things personally; he'd have a puppet acting in the role you described. Let the puppet have to deal with human memories and mental contamination. Were I he, I'd have spent the years since the flood grooming my puppets to utter loyalty with promises of (insert whatever fetish they have).
If I remember correctly, Tolkien doesn't give a Sauron POV until the end of Book 3, and even then only a brief "He realized his great mistake". If there is a Sauron POV before this, it would be worth looking into
tl;dr: You've set yourself a high-level challenge to try to convince the reader that this dude is someone who can deceive an entire planet when in his head/mindset