Let me tell you a little about me; I'm scripter but never attempted to try making a rental scripts.
I will show you about the idea of this rental room, any missing commands are in need of the helping hand out there
Note: I used y_sure and n_quit so other rooms will just use those to repeat the cycle of the script for the other rooms.
I also want to add the mapcheck for the room, if the room is empty the npc will assume that its available for renting, and if not, the npc will say:
Thanks in advanced..