125 gal drilled overflows

[Canadaboy]

Thanks for the info guys,I plan on setting it up with a DSB and LR with the biggest sump I can fit under the tank(50 gal or so).As for a return pump I was thinking of going with a Mag 12 or Little Giant 4MDQX-SC(I'm hopping for 10x turnover).Recommand either or another pump?.Also I am having trouble deciding on a skimmer,I have it narrowed down to either a Berlin Turbo or an AquaC EV-180.
Thanks again.