We were able to find national based contractors supplying good quality solar equipment and pumps in every country we visited (including places like South Sudan or Somalia). We got the prices from these contractors and from the organizations working in the area (NGOs and the like); so the capital costs of equipment we used for the economic analysis were based in real prices of products in the country. For maintenance and repair, we based our calculation in conservative estimations provided by manufacturers (you can find those within the Cost analysis tool at https://thesolarhub.org/resources/cost-analysis-generator-vs-solar/