I hope you'll publish soon what you've got so far. RPG Maker VX is a great tool to work, so I wish you good luck and if you need any help making this, just ask me if I'm avaliable lol.
Interesting concept, can't wait to see it finished, don't feel like signing up for NPC though, mostly because I specialize in lack of importance...even more so than NPC. I'd be more of an easter egg awkward square of grass that says *No Presence*