In the discretion of the board, any bonds, refunding bonds or notes issued by the board may be secured by a trust agreement between the board and a corporate trustee, which trustee may be any trust company or banking institution having the powers of a trust company within or without the state. Any such trust agreement may contain provisions as set forth in section one of this article with respect to the resolution. All expenses incurred in carrying out such agreement may be treated as a part of the cost of constructing, reconstructing, remodeling, repairing, improving, extending, equipping or furnishing the football stadium or other athletic facility at Marshall University affected by such agreement.