I would go for a larger pump, I use a Mag 9 in my 40G breeder... I am working with 4 feet of head height, 2 3/4" 90's about 5-6 inches of 1 inch braided pvc hose to isolate vibration and slow the velocity. Split into a wide fan shaped return pointed in one front corner, and a flow accelerator pointed in the other front corner. All of that cuts down the GPH of the pump, Much below the rated 950+GPH.
You can always use that Mag 5 to run a reactor or two, or a chiller. Always nice to have a backup pump in case your main dies.