Slow progress, unfortunately. But I think I finally have my plumbing figured out. The unfortunate reality is that my stand, which works really well with the rest of the decor in my office, is not meant for plumbing a fish tank. I have to place the sump off to one side and there isn't much vertical height to work with. I think I finally have it figured out (mix of hard plumbing and tubing) and my remaining parts should arrive sometime this week. Here are some progress pictures.