Overflow alternative

[kuatto]

O.k. went out today and picked-up most of the plumbing need for my sump.I started to think about the overflow and wondered if I skip the overflow box and use just the pvc pipe with an inline pump/pwr head to draw the water out of the tank and down to the sump,using a submersable pump for the return.I could use small egg crate to cover the intake of the pipe.Would this work?(I would just drill the tank but its already running)

Jim