Used Sooner Horse Trailer Gooseneck Horse Trailer for sale. This trailer includes Slant load, 7' width, 7' height, 17500 lbs. GVWR. This horse trailer is for sale in Macon, GA and you can buy it for $11,995.00. Please review all features with a salesperson. We try our best, but sometimes features and weights get listed wrong. Call 478-960-1044 Atlanta, Houston, Augusta, GA, Ocala, FL, Richmond, VA, Oklahoma, Wyoming, Little Rock, TN, Memphis TN, Ocala, FL.