Could need some help with my custom story

[sassix]

but my story wont make any sense without thos models i need i cant add quest " yo get some medicine from bathroom" if there is no bathroom i cant use a bucket as toilet, i also need a mirror and stuff like this i dont know if there is stuff like this in penumbra but i dont got this game so theres no way to get this models ^^ i want to confront with this "problems" now to know how to handle it and not after my first map