Yes, you can get a legal digital version. Because the original work is public domain, you have ethical options:
The United States Supreme Court operates under a veil of secrecy, yet the internal dynamics of the "Conference" dictate the rule of law. Among the Justices of the Rehnquist and Roberts eras, few developed as distinct a philosophy regarding the process of judging as Justice Stephen Breyer. Often contrasted with the textualist approach of Justice Scalia or the originalist approach of Justice Thomas, Breyer championed a "Madisonian" approach to the judiciary. beyer pdf
(PDF) A Manual Actions Expressive System (MAES) - ResearchGate Yes, you can get a legal digital version