Awesome! I've subscribed to your patreon and I'm looking forward to the finished game.
Also I saw your old post about the maps and having to split it into 2 parts. Have you tried making maximum sized maps(whatever the tile limit is for your version of rpgmaker)? I saw a game in development a long time ago that had 4 "floors" of the same dungeon on the same map they just had a lot of black space in between the player areas.