William,
Yes to all three questions.
I respectfully advise you to continue researching what you want to do. Others have been using cnc to cut foam wings for a few years, and many will have posted lots of exact answers to your questions. A little time spent reading and studying now may save you headaches and wasted funds in the future. I have never cut foam wings with cnc, so I'm not qualified to advise you with specific details.
Good luck, and enjoy,
John