29 Gallon AGA Sump Build Help

[805fish]

Building tonight my sump. It is going to be used for a 65 Gallon BR. The Display Tank will drain from the left and where the skimmer (ASM G-2) will be at. After the water will flow trough the bottom and then over onto the refugiem. Im thinking of a DSB but not sure how deep yet. After it will over flow and then back under onto where the return pump is at and the heater. Will this work out? Pls let me know