Sump Upgrade Advice for Red Sea Max S-500

[Dae]

Hello,
I am looking to upgrade my sump from the stock version that came with the Red Sea Max S-500 tank. The cabinet space is not great so it limits me on sizes of sumps. The length of the space is about 26'Lx20'W. The equipment I am currently running is a reef mat roller 500, an ATS Algae turf scrubber and a skimmer. I am having a hard time finding something that would fit all of these pieces of equipment inside without having to modify the sump. If anyone has any suggestions or ideas I would be incredibly happy to hear them.

 

[Tang fastic]

You could always try som sort of two tiered sump if there is size on the y angle