It should be fairly easy to get a work visa for her. Check with your equivalent of a State Department, or who ever handles emigration (leaving the country). The same people you'll have to deal with to get a Student Visa.
what education do you have, if you have a highschool diploma you may be stuck with a minimum wage job which is 8 dollars an hour. Plus it would be difficult to maintain a job and school, so i would say very difficult