I tried to show the process using JING. I did not take care in being precise, particularly with the ellipse; the idea there is to make sure that each of the 4 nodes of an ellipse are positioned on a guide intersection after skewing and rotating, then ellipse will be in true perspective ... a bit tedious I admit.
Hope the below link works:
http://screencast.com/t/bYD4Mrt52
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