In payment of the purchase price of a used motorboat that had been fraudulently misrepresented, Young signed and delivered to Armstrong his negotiable note in the amount of $2,000 due October 1, with Selby as an accommodation comaker. Young intended to use the boat for his fishing business. Armstrong indorsed the note in blank preparatory to discounting it. Tillman stole the note from Armstrong and delivered it to McGowan on July 1 in payment of a past-due debt in the amount of $600 that he owed to McGowan, with McGowan making up the difference by giving Tillman his check for $800 and an oral promise to pay Tillman an additional $600 on October 1. When McGowan demanded payment of the note on December 1, both Young and Selby refused to pay because the note had not been presented for payment on its due date and because Armstrong had fraudulently misrepresented the motorboat for which the note had been executed. What are McGowan's rights, if any, against Young, Selby, Tillman, and Armstrong, respectively?