While I'm here I might as well say bravo on such a great looking project. I really hope this isn't abandoned and that I can play this in it's entirety soon. It's hard to find a quality game these days and it's because the creators lose interest, I know from personal experience. So I recommend taking your time and making this at your own pace.
You don't need RMXP at all to play this, it just runs off the .exe.