Should that be 'recently retired'
I think the reason you're struggling in your search is that the workspace for digital artists really isnt important. Even with traditional artists layout is purely personal preferance. Just think about what YOU NEED to create your work.
For me, my workspace is a small room just big enough for a computer table and a chair. My equipment is just my PC, mouse and keyboard. On my desk right now is hair gel, moisteriser, my contraceptive pills and vitamins, a pad (no pen...oops) 2 old hard drives, hair scissors and empty water jug, 2 bottles of thermal compound cleaner, a makeup brush used for cleaning my heatsink, 'titania's fortune cards' ( minus the cards), 2 credit cards, a pile of CDs and deoderant.... as you can tell, I live at my desk.
When I worked with good old fashion acrylic on canvas or watercolor on paper, all I needed was a suitable surface (flat for water color or my canvas for acrylic) and a good view of my subject.
What you put in your studio and how you lay it out should be determined by what you need to create what you want to create. If you're purely digital, all you really need is a computer, a desk and a chair and enough space to put them in.