Help on designs for 33g sump, 33g refugium

[Pro Fish Keeper]

I have a 115g not drilled. I want to build a sump with refugium. I was wondering if anybody has a simualr setup as mine. I plan on using overflow boxes. What do i need to build my sump? What do i need to make the refugium effecient. If anybody has pictures or a sump setup in the lower mainland area id appreciate taking a look at it. Or does anybody have a basic schematic?