Silly question but where is this located? Is the sump right next to your tank? Is it hidden or out in the open?
I know for our 75
gal with the way we built the stand, I had a hell of a time finding something big to use as a sump. I had to disassemble the side just to fit a 20
gal tall tank. I could not find any rubbermaid containers to fit. I just have my drain dumping into the sump ... it just hangs there but it is not visible. Trying to get something in the sump to help filter out some of the floating stuff in the water now...
BTW, I like how you did your drain. I did not know you could do that
Good luck on the setup.