Gunn starts with Goran Maric, scorer of the winning goal against St Johnstone, alongside Jamie Cureton in attack, while centre back Jens Berthel Askou partners fellow Dane Dario Dumic in defence.
Michael Spillane gets another chance at right back, while a midfield of Owain Tudur Jones, Matthew Gill, new dad Matty Pattison and Wes Hoolahan looks likely to be narrow and feature Hoolahan in an advanced role.
Michael Bridges and Paul McVeigh could be given further opportunities to impress from the bench.