OK, for ease of access to the skimmer and return pump, but not much access to the fuge, this may work
Think of your sump the way you will see it when the tank is against the wall/in the corner, with the longest edge against you
Have the DT drain into the skimmer chamber on the front left
It flows under the baffle to the fuge, then spills over to the right front chamber where your return pump would be
You will need to raise the tops of the glass to make this work, but it will become a bubble trap, and no worries about sand migration (if your skimmer is on a stand)
The glass between the skimmer/fuge and skimmer/return would need to be taller. Simple strips will do
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