I don't think 30 IP of Chapman is going to necessarily be that expensive, considering how much 1+ seasons of Chapman cost the Yankees in the first place. The Nats are in heavy on Chapman, but they're not giving up the likes of Robles, Turner, or Giolito for him. The Yankees would be lucky to get someone like Reynaldo Lopez or Jon Harris for half a season of Chapman. They just need to get a prospect who's better than the comp pick they'd get, but that's not going to be a Top 25 prospect like the Padres got for Pomeranz.