217.560.  Enterprise program diversification and purpose. — The vocational enterprises program shall be diversified both as to location and kind and shall have for its purposes:

  (1)  The training and employment of offenders in such job skills and tasks as will afford them the most favorable opportunities practicable for gainful employment upon discharge from the department;

  (2)  The manufacture or provision, so far as practicable, of such goods or services as are, or may be, needed and used by a department, agency, or institution of the state or any political subdivision of the state, any state employee, or any not-for-profit public or private agency;

  (3)  The servicing, maintenance, and repair, so far as practicable, of machinery and equipment used by any department, agency or institution of the state or any political subdivision thereof.