enclosure ramps and Raspi B,B+,2,3

The cable chaos on Ramps bother me for a long time. Many housing make it not really better. The chaos is only hiding. Now, it the Ramps was never built for a closed installation.
I searched a better solution. I think I have found them. All connections are led out after a side. The control can be connected quickly easily in other projects.
The prototype includes a Raspberry Pi 3 as the host. Another lid can also take up a Raspberry Pi B+.
The use of the second extrusion is also prepared. The p