Brush and Tool Storage

I'm paining Miniatures (Warhammer etal.) and so i do have requiremet of a lot of storagespace for my brushes, small items and shapening tools.
As i did like to have the main storage a bit tilted, i did create the big middle segment to get locked on the base which also allows me to get some distance to the wall.
Right part, my Airprushpistol is taking place which is rotatable and lockable with a small bushing which i'll also include here.