I uploaded new photos, because i did some changes... i didnt want to have screws from outside, so i fix sides from inside so wooden boards look without screws....
on second picture u could see how one wooden board whould look like...
od 4 and 5 u could see where u should adjust ur custom wooden boards....
6th picture shows how much space we saved with this operation
7 and 8th shows right side of keyboard, and that is area whr u have to be most carefull.. u have to put out right metal holder, and to cut off lower part of holder, and upper parts can be fixed with the hammer (or convincer, what is other name for that tool here

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and on picture 13 u can see how right side should looks... and be carefull for that screw in lower right corner, it should be very short, or else u will not be able to close ur keyboard...
15 and 16 also shows what can u save if u do this, money and space...
