Original model : https://www.printables.com/model/35314-modular-vw-bus-container

I modified the planter so that there was no longer a hole for the water to run over the bus. I also enlarged it on the height to have more depth for the plants. 

Printed it with 5.5 % infill and a layer height of 0.12 mm 

A version of the roof without the planter hole is also available :)