To some degree your focus will depend on your interests and on available literature. I'm sure that you will find more material on and around this subject than you may like. Some material may be tricky to find, as charities may not fully disclose all pertinent information. The library's Bibliographic Information Session is going to be very beneficial to help you identify reliable and valuable sources. Furthermore, I will need contact information, so I can ask your professor's consent and cooperation.
Quantity is no indicator of quality, however.
A short but well-focused paper is preferable to a long and rambling one. This is why I do not want to specify a number of pages. Discounting front and back matter, you may be looking at about 10 pages for the body of the report. Dot matrix printouts are unacceptable for the final copy of the report. Be meticulously accurate when attributing facts you borrow from secondary sources.