looks very nice. For me thou, i think that the sides of wood case (on the bottom part where the maschine resides) would interfere and disturb me as i wouldnt be able to move my hands/ wrists 100% freely. I think if made the cut diagonal so that it follows the profile of maschine, it would be alot more practical and comfortable to use.
The concept is very nice, if i had a laptop to go with my maschine, i would probably buy/construct something like this
Aesteticly it looks very nice