Visa: We got a Visa Entente that covered us for Burkina, Niger, Cote D'Ivoire, Benin and Togo. No problems using it at any border and we left the Visa Entente area and re-entered. We got it at the Consulate of Benin in Barcelona, contact details on Thorn tree. Very efficient service.
Insurance: Covered by Carte Rose
Diesel: 600 CFA/L