Markus and I have long considered ourselves how we secure the storage space under the bed to reduce slippage of material. This is substantiated, the first part of the solution: The tail section comes with a standard luggage net. With a fully loaded van I wouldn't do a burnout anyway.

The net is fixed and attached to a aluminium bar at the top left and bottom right. The bar is removable, so you can easily load the goods. The top is again wrapped around the bed rail, so that the net has now twice the strength.

I could not install the electrical box as planned (at the front right under the bed - next to the sliding door). It was not save enough for the battery, there were no points where I could have mounted the box safely.

I found a better place behind the "kitchen box". I was able to attach the electrical box directly to the kitchen box with 2 big screws.