BiblioVault may have an electronic file which would meet your requirements for this title:
Sophocles II: Ajax, The Women of Trachis, Electra, Philoctetes, The Trackers
Sophocles, Mark Griffith, Glenn W. Most, David Grene, Richmond Lattimore, Mark Griffith, Glenn W. Most, David Grene and Richmond Lattimore
Paper: 978-0-226-31155-5
Cloth: 978-0-226-31154-8
Electronic: 978-0-226-31156-2