Hi Danny,
Here's a 60 gallon sump I just made:
and a schematic of it:
Right now it is on my 125G. FW tank hence the bioballs and ceramic rings. I use the air powered sponge filter for a quick filter should I need a q tank plus it keeps the sump cleaner. Thinking ahead (for SW) I arranged the middle glass baffles to allow for a DSB or refugium space.