I was there in 2014 can't remember what month. We wanted to ride the Inca Rail DMUs and returned by Perurail. Unfortunately the loading area at Ollantyatombo (the other Inca ruin) is now the main station To depart to Aguas Caliente.
It is difficult to photograph on platform due to the crowds. Then it was a bad two days in Aguas Caliente due rain and fog.I have not been able to get back to Cusco. Not sure if the Edwards Cars are operating under Inca Rail.
Thanks for the photos. It looks like the Edwards Cars have been modified since the the tests on the C&TS.
Dale Brown