Plumbing: This is pretty basic stuff. The main thing was that I wanted to do everything inline and not go over the tank rim. So I'm using an inline Hydor, a PVC reactor, and a Odyssea canister filter to drive the works.
The inflow uses 1" PVC fittings and 1" flex tubing. The outflow uses 5/8" flex tubing and 3/4" PVC fittings for the most part. Time will tell how this all works out.
I'm also in the process of plumbing in hot and cold water supply into the tank. There's no easy way to plumb waste, though, so I think I'm going to be stuck with a hose to the toilet or lawn. Water supply is still worth it just for top-off purposes, though.