Wow, how much fun is that! You are going to have a HUGE space! Please keep posting pictures as it progresses. It is so fun to see the changes. Your head must be swimming with all the planning! :)
Great going getting the extra electricity. That is so important. My hubby put in extra circuits into my room so that my iron wouldn't make my lights flicker! One idea that I had, was to have him put a light switch at the doorway that operates the one receptacle where my iron plugs in. When I leave the room, it's easy to remember whether I turned off the iron.
So happy for you!
Connie