I still think Boras leaking this means Skubal is interested in staying in Detroit. If Detroit's original offer was 4 years $100 million and Boras says they are $250 million apart, he will sign for $350 million which is not unheard of considering Gerrit Cole's contract at 9 years $324 million.
Teams get creative with opt outs, deferrals, signing bonuses. It might be doable.