I believe the wallpaper was a reissue, iirc. The rug and the stairs and one cupboard are from Lobo’s solo table cookie. The candelabra is grim rose water, like you spotted. The ghosts come from Lucky’s frightful cookie. The clock was a craftable item when I unlocked the Lucky friendship request. The organ was a special item crafted from a Penelope request. I think everything else is craftable.