Wow, that is a great space for a build! Really look forward to seeing your progress. After a while you might consider putting up a couple of battery backup light fixtures unless you have a generator. I remember being in this LARGE confusingly laid out basement of a house where the owner had used black paint on all the walls. It definitely made you focus on the layout which was his intent. He mentioned that he had a couple of flashlights around if there was an electrical outage. Having been in the electrical design business for years I then did a heads up on looking for exits. People not familiar with that space would have been in trouble ever trying to get out. Now this is just MHO and if you never have anyone over no problemo. Peace.