Does anyone use the the following cargo box by Polaris. Item #2881193. I would like to know how much room there is between the back of the cargo box and the 4 welded brackets behind the seats on the bar. Just wondering if I have enough room for rotopax 1 gallon tanks and this cargo box. I need approximately 3.5 inches from the bracket to the box. If you have a few pics of this cargo box, especially the side view that would be great. Thanks.