My new tank plan & How should i plumb my tank?

[Tarolisol]

Hum... i dont really want another pump running, My sump is only goin to be a collecting point for water. My skimmer is goin to be outside my sump and my fuge will be a tank set away from the sump with a mag 7 pumpinh water into that. So in general nothing will be in the sump but water.