That's inside the van when empty of cargo? Something like 2 steps across, 5 up, 2 across and 5 down? Seems like outside around the van would be better, if possible. Just don't play a trumpet when circling it that many times.
Be suure to change direction on your turns or you'll wear out the inside shoe prematurely. What are people thinking as your Sprinter agitates in response to your movements?