Excellent reef tank. The pump moves quite a bit of water, but I added a 2-Tunze pumps for more movement when I had is stocked.
I suppose all you would need would be a skimmer and lighting (and of course sand, rock, livestock). The sump has a "skimmer" chamber that was modeled for an AquaC EV-400. Sump also features a refugium section and a large volume for return.