One box is not enuf...
I also included a single sliding shelf. Luv the shelf!
My temptation was to plan every inch of space with everything I wanted mobile. But that made one case waaayyy too heavy... waaayyy too fast! ... and I often had more pieces left over.
The secret for me was to distribute my total pieces functionally into more than one case... thus, more space, air circulation and ease of operation.
The cases lock into stacks and have wheels, too.
Luv the wheels!!