Question for Bweyale Public Primary School

I have a question and I hope you can help me further. Namely what are the average cotsts over a year for boys in the age from 6 to 13 years to visit a primary school? I am asking this for a friend who has a relative living in Bweyale. Three boys (orphans) are staying with this relative and would like to go to school,but the financing part is a problem. My friend would like to support those children if the costs are not to high to realize. Therefore I am doing now some research to consider the possibilities. Could you give me some detailed information? I really would appreciate that in favor of my friend and those children who have never been able to visit any school! Greetings, Sjoukje Meijer (the Netherlands)