The purposes of this section are (1) to make financial assistance available on reasonable terms and conditions in rural areas and small towns to needy low-income individuals and their families who, with the benefit of technical assistance and overall guidance and supervision, participate in approved programs of mutual or self-help housing by acquiring and developing necessary land, acquiring building materials, providing their own labor, and working cooperatively with others for the provision of decent, safe, and sanitary dwellings for themselves, their families, and others in the area or town involved, and (2) to facilitate the efforts of both public and private nonprofit organizations providing assistance to such individuals to contribute their technical and supervisory skills toward more effective and comprehensive programs of mutual or self-help housing in rural areas and small towns wherever necessary.