Hi I have a sump for sale for $100. It has the following:
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Filter sock holder
20X16 skimmer section
24X8 Refugium section
Two baffle areas for bubble traps
Phosban reactor section
One of the corners has a small chip out of it but it doesn't get past the silicone. It holds water without issue but a 5-10 dollar glass patch might help for peace of mind.
I currently have it cleaned and full of water for anyone that is interested in checking it out.