Red Sea 200xl cabinet space for slim ato tank

[Biggame217]

I recently ordered a Red Sea reefer 200xl. I am wondering if anyone knows the cabinet space measurement with the stock sump it comes with. I am planning on getting a aftermarket slim ato tank and was wondering the measurement of the sump to the side wall. I know it's narrow but I saw one that measures 4 inches wide by 24 x 20 . Just wondering if that would be a feasible area to put it as I want to keep things in the cabinet.
thanks in advance
Glen

 

[Biggame217]

This is what I was looking at on fitting on the side of the sump and the cabinet wall.