Hey everyone! Thought I'd come back to say I found an actual oem s pen on Amazon. Here's the link
BUT I got it cheaper, used, for about $17 from a used seller. Scroll down where it says "other sellers on Amazon, new and used" and pick one with prime and a decent price. (or click the "save with used" option under the "buy new" default. There's one currently for $14.88 at the time of this comment)
Mine was "used - very good" condition. Came looking almost new imo. Works like a charm, everything I wanted. Now to find a makeshift s pen holder 😂