I modelled some of the Küpper workshop furniture elements in Alibre Design
for the purpose of planning the layout of a workshop in 3D.
The meassurements are taken from the assembly instructions.
Some thicknesses that are not important for planning are guesswork.
Blog posting: http://marcuswolschon.blogspot.de/2018/02/3d-models-of-kupper-workshop-furniture.html