In my last place I put my bench and computer desk in an "L"-shape (to be able to use the computer monitor to show a particular detail photo)inside the closet, thus opening the maximum amount of floor space.. Same thing with the display shelves vs the cabinets, to keep max-floor space.. Can't really recommend any for the War Room.. Living room, yes.. Household Six has no issues with my dioramas in the living room... I just can't invade HER space with them.. I get two walls, the one behind the couch, and the one behind the TV.. She gets the other two for her pictures, her cross-stitch projects, and the kid's portraits... She also gets ALL the walls in the bedroom.. Fair is Fair..
Cabinets that go all the way to floor are ok for grocery stores, but not model-displays, IMHO.. The shelving is quite utilitarian, and not something you'd notice, which is the effect I want... I want folks to have their eyes drawn t' the models, not the furniture... Models that are displayed anywhere below waist-height are seldom looked at unless one is sitting, the way I sit, anyway..
I'm probably unique in that way though, since I don't care about the looks of the furniture, and I'm also 6'2", so "eye-level" for me is a little high for most guests I have in there... But I got shelves for the "little people too.. I start at about counter-top height, and go up to 6'6" off the floor..
If the closet would have been wider, I'd have used the "U"-shaped bench area too, but it wasn't do i didn't... As it was, it had a ceiling light too, and I added a shop-light to it.. Didn't have a paint-booth, don't believe in 'em... So I'd say lose it, but that's just me..They too just take up floor-space IMHO... Just the Lazy Susan, which was actually a CD/DVD rack... I don't have an issue with overspray, with the exception of rattle-cans, and there's no paint-booth I'd care t' use, since they'd need to be pretty big to handle the spraying positions and angles... There isn't enough overspray from an airbrush to matter, as far as i'm concerned.. Plus, I like the smell of laquers and enamels too...
Unbuilt Kit storage was the top shelf in the closet, and those kits were stacked up to about 8 foot... Also, I had kits stacked form the floor to the ceiling in other areas...
In the end, it's all about peronal space, and about how you utilize it... No matter what I plan out, no matter how efficiently I plan the work space, it's never enough,lol.. I once had an eight-foot long bench with a chaor that slid on rails like a library ladder its entire length, and I still managed to have completely full of projects... The more space I had, the more stuff I could work on at once, lol..