Sorry Matt, No CNC experience here. I researched them a couple of years ago when I retired. Started off designing a simple copy carver then started shopping for something motor driven and computer controlled. Like you, was pretty sure there was several ways to pay back the investment. My wife was even signed up for it (even without the need for special buttons) :~) The bottom line is did a lot of research but never pulled the trigger so have a real appreciation for the work you've done so far...... I saw your original list on one of the CNC forums.
Now the real fun begins, putting it together and making the bloody thing work. I'm excited for you and wish you all the best with it. It's a good investment. Keep us posted on your progress. Maybe start a CNC uke thread eh?
Cheers,
Fred