Mobile or Manufactured for sale by owner in Rialto, CA 92377. 1987 Hallmark Winchester, doublewide, one owner, 1350 sq.ft. in El Rancho Mobile Home Estates, senior community in Rialto, CA. In excellent condition, new: air condition, furnace, water heater, garbage disposal, front porch, skirting, jacks and exterior paint. Must see to appreciate.... See site for full property details.