Discussion and possible action to approve the purchase of a Ford Expedition in an amount not to exceed $36,000 from Caldwell Country Ford-Chevrolet (Buy Board contract #430-13) pursuant to Local Government Code 271.101 and 271.102 Subchapter F. Cooperative purchasing Program. [Requested by Dr. Corinne Stern, Webb County Medical Examiner; Account #750-8000-8801]