If you're willing to take up your time to try to sell ANOTHER different bike for cash, then that's on you, especially if you're stuck "holding the bag" on a bike that you don't know the history of and have no experience riding. But, one man's trash... You said yourself you're looking for outright cash, so... I'd stick to that. Cash is king. If the guy can afford 3 bikes, he can afford to put another small one in the stable if he really HAS to have yours NOW for what you're asking until HE sells his bike. You're doing his dirty work for him, for free (or at your expense if you consider the time value of money), like a little bitch.