What an exciting idea!!! I really liked the fact that all the materials are locally sourced and produced. Its also very interesting you are planning to involve the vendors themselves in the process. Selection of the vendors themselves in the right way may be a bit challenging. Have you decided how you are going to do that? I think it would be great to use already existing associations or groups in the 'Kifleketemas' to ensure efficiency and sustainability. As a resident of Addis Ababa, I look forward to the fruition of your ideas. Keep it up!!!