Here is a basic drawing of a micro track plan to fit a one foot by four foot space.
The traverser could be hidden within another structure by using DPM or Walthers Modular components. A backdrop could also be used to hide the front of the traverser and a highway overpass to mask the traverser's entrance/exit tracks. Cars/locos can be fiddled off of the layout within the hidden traverser or you could use a cassette(s) on either end of the front track.
Track Plan Note: Traverser track is 14 inches long. Car shop tracks are a little over 11 inches long.
Feel free to modify this plan to suit your needs.