Application for assistance under this Act shall be made by the veteran to the Illinois Department of Veterans’ Affairs and shall be accompanied by satisfactory evidence that the veteran has been approved by the Administrator of Veterans Affairs for assistance in acquiring a suitable dwelling unit or in remodeling a dwelling not adapted to the requirements of his disability. The application shall contain such information as will enable the Illinois Department of Veterans’ Affairs to determine the amount of assistance to which the veteran is entitled. The Illinois Department of Veterans’ Affairs shall adopt general rules for determining the question of whether an applicant was a resident of this State at the time he entered the service, and shall prescribe by rule the nature of the proof to be submitted to establish the fact of residence. The Illinois Department of Veterans’ Affairs shall adopt guidelines for determining types of remodeling and adaptations which are reasonably necessary because of a veteran’s disability, for a veteran eligible for assistance under Section 2.1 of this Act.