Ok, G0HZU,
maybe you're right and i should throw away "old ballast", but that would be very difficult, i tried to, but i just can't do this for fundamental publications. Therefore i am somehow trapped. On the one side i know that your approach is somehow the right way to continue, but on the other side i have the impression that throwing away my library, would leave me as only one half of my person and personality. I tried it already with tablets and ipads, while this is sometimes a good solution for traveling, it is not the same reading a book and reading a tablet. Technical information can easily used on a tablet, but believe me, it is psychical and physical something very different for consciousness in which way you pick up information, besides the fact that literature, poetry and so on could be read, in my opinion, better on real paper. Maybe this will be different someday, but for now, i can´t fully depend on pdfs.
The other thing is a matter of taste, some people are not comfortable with this sort of furniture, but the shelfs are bomb-proof, very stable, and, in my eyes, better than wood because they take much less space between the boards. Thank ox for our thoughts, i appreciate that! (and DIPLover has a point when he is in doubt if someone can work on behalf of some other floor or taste :-))
But i rather would concentrate on the particular problem, i made some sketches about the desktop-workbench, but i still don't know, if it is possible to take the front from the Rigol DP832. I attach the sketches, on behalf of them i will cut the tabletop.
Regards and thank you for your advices!