My "cube" is similar.
I looked at motors to open and close but found it un necessary but if you add motors you need counter weights ...however one thing I found most useful was the addition of a curtain at the front and back that is between the doors and they effectively raise the wall height to shield from wind or in my case a street light across the street....actually if you want my cube I would be prepared to gift it to you... It is only 4 x 4 x4 feet and should be easy to dismantle and reassemble.
Alex
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