Can you help me find the production cost per pair of essential shoes, in African countries?

I just need a rough idea for now, about production costs for this type of shoes. The idea is not to resell, it is for a humanitarian project. I’m having a hard time finding info about how this might work in Africa. Any idea helps! Thanks

Rough idea of what would perhaps be interesting:

- http://www.alibaba.com/product-gs/317693118/Men_s_Sandals.html

- http://www.alibaba.com/product-gs/237598760/Sandals.html

Thanks