Desktop apothecary drawers and shelf

I have a special desk in my office. It allows time travel! You look under the top layer of stuff, and find half completed jobs and projects from the past. Dig beneath those and find more, older still! This is notionally where I would also carry out various hardware diagnostic and repair jobs, but that always seems to require a Moses like parting of a sea of "stuff" to find space to work. So this is what I conceived to try and get some organisation of the space.

Previously I concocted a desk bookshelf, and that has sat on the back of the desk since. While it certainly helped in keeping some of the chaos in check, it did not really have enough storage to do what was required. Also it only used half of the available desk width. So this time I decided to combine the concept of a shelf with a set of apothecary style drawers to allow some organisation and storage of the kind of small tat that seems to accumulate on the desk.

Here was the rough idea as a sketchup model: