Unity game (Low budget: 10$, everything is imported, just needs some adjustments, till Wednesday night)

What I need to have is : -coliders for objects (room, desk, bed,stairs) -click on the bottle instances a key next to it -when you have a key, you can open door on the floor (trigger) -key on the desk in the basement enables the door upstairs (they must be disabled/closed before) -timer which is a score, and stops when you open the door upstairs -footsteps audio when you walk (audio already in the folder) Everything else is already done. Please bid only if you can do it till Wednesday night (final deadline) and if the budget of 10$ is okay. Contact me for more information.