(a) A "person in the position of a seller" includes as against a principal an agent who has paid or become responsible for the price of goods on behalf of his principal or anyone who otherwise holds a security interest or other right in goods similar to that of a seller.
(b) A person in the position of a seller may as provided in this chapter withhold or stop delivery (Section 2.705) and resell (Section 2.706) and recover incidental damages (Section 2.710).