Adding 'cabinets' around wheel wells in cargo area?

I've been looking for DIY or pre-made build that adds shelves/cabinets on the sides of the cargo area. I don't want to loose height, so adding a drawer is not ideal. I'd like to add some sort of compartments around the wheel wells that come up to the windows, abut the back seats when they're up, and fill in the space between the wheel wells and hatch. Kind-of like the picture below, but not all the way up to the ceiling and with doors. Has anyone seen something like this in a 4runner?


Or the side pieces of this setup without the drawers etc. and higher.