From what I have read and have been told the ideal flow through a sump should be 3-5x tank volume and flow in your tank should be 10x+ tank volume.
So it seems to me that you would need a closed loop or power heads.
It would be nice to have one pump run all/most items ( return, skimmer, reactor, uv etc.)
So pick a pump that is quality, low wattage, quiet that can run all your acc and still flow 5x your tank volume through your sump.
How big a sump are you going to use?