Kyle I am glad you posted this and I am sure that you will get a lot of advice here. Once you get the pictures up we will all have a better idea of your space and what you have to work with, but we will need more info too.
For example what kind of woodworking are you planning to do?
What tools are you planning to have even if you do not acquire them right away?
I know from talking to you that you seem to be mainly interested in turning but that may not be your only need, I am sure that you will want/need to build some stuff for the new house. I also know about you bad knees, trust me you do not want anything but wooden floors and as it gets cold up there I would really look hard at radiant heating in the floors it really is wonderful.
Lots of lights on two or three circuits is also a great thing to have. Painting the walls and ceilings is also a really good idea, on those dark bleak gray winter days you will really benefit from this.
Can't wait to see the pics and hopefully in person on day soon
The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward