so i built this one at that time and used it for a while. the parts were designed to be separable and mobile so i could take them any where part by part. so now i am using small screens and do not need this stand anymore so i have recycled the wood for making other things. but still you can see pictures and a little video at the end.The project used to work with HDMI cables and an HDMI switch remote controlled.
Why i don't use it anymore:
using small LCD Screens working with battery.
it was too big for carrying and moving around.
and needed AC 100V always.
Here is a video of the ending: