Sigmaringen is cost-effective, and East Africa is also cost-effective. East Africa's material and labor costs are not high in themselves. During the previous railway construction, a large portion benefited freely from the global steel capacity surplus due to the economic crisis of 1873.
Now that various steel plants in East Africa are in production, meeting its own needs is no longer an issue. As for labor costs, building this railway is nothing compared to current water conservancy projects.
East Africa completed its planning for steel, railway, and related industries over the course of the seventies, and in these two fields, it should be said to be on the same level as Russia; the quantity is adequate, though the quality is relatively rough.
