Yes. How is that unrealistic?
It's not my money, it's the rich owners money, who isnt spending it on any other players anyway. In todays game, it's rare for players like Machado and Harper to hit free agency at their age. It's the best chance the Sox will ever have to acquire such a talent in their prime, at a time when their young players are getting very close to being viable major leaguers. If there is any time to overpay, it is now.