You should check out Isla Bonita Elementary for this project. While it is considered private, the tuition fee is significantly less than others and the population is almost exclusively Belizean. My son attended the school for one year and we couldn't have been more impressed with how rigorous the curriculum was as well as the level of parent involvement. The class size is relatively small ( he had 11 in his class) so they are probably a little more adaptable to special projects like this one.
Good Luck with this, it sounds like a great idea.