Ahh sounds good, thought you meant an external swirl setup.

A good tank with sump ( and foam or baffles inside too etc ) really is as good as any and as simple as you'll get.

What size is tank outlet ? It's surprising how far a small outlet will go. Mine's less than ideal at 5/8" BSP, internal hole is pretty small. It's something I keep meaning to change....but it hasnt presented itself as a problem so never bothered.