Thanks, Fsn.
I have no idea really what skimmer I'm going to get and I'm not positive on water levels if they're going to be on point. I can always set it on something inside the sump as well, if that's a problem. Also, my boyfriend is the one who drew this so it was hard trying to explain all of the details without him going WHAT WHAT'S THAT WHY AM I DRAWING IT HERE WHAT ARE THESE LINES FOR??
Mostly, this was for me because of all the different things I've read confusing me.. I needed to actually see something if that makes sense.
He has photoshop, and my paint "skills" are embarrassing.
I will make the return area as large as I can, thanks for the advice.