Thanks for the encouragement, friends. Most of the would-be darkroom space is already fine. I have a U-shaped wall with shelves on the long side and electrical sockets on all three walls. I'm going to need a sink with a line that runs to an existing drain as well as the removal of a florescent light that is in the way of the wall I need to build. Add a couple tables, install a safelight or two and a ventilation fan, put in the enlarger and I'm there.
My goal is to have complete control of the artistic process without ever having to sit at the computer.