I doubt if a defeat here would really put third back in doubt. Will Livi hit the 60+ points threshold that we almost certainly will? Probably not. It would sour things with a game against Rangers next up, however, and would probably make Livi favourites for fourth spot.
The above team will also probably be a goer, though perhaps still with Gino in and Grant on the bench. Grant could still 'come good', but if a third red card of the season has his name on it, then this could be the fixture.