I am currently working on closing all the open gaps and outer surfaces on the desk. Current target is to close the backside of the table. Here some pics of the as-is situation:
That ugly view needs to be hidden. 
The 3D prints on the left side will be used to hold the acrylic glass cover by using magnets. The acrylic will have some very thin metal sheets glued to it.
The approach to mount the surfaces will be the same as already described this post: https://chspeedy.com/2020/06/24/desk-pc-2-0-update-gluing-the-magnetic-sheets-for-cover-installation/
Update to follow
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