Oli continues to struggle with a hamstring problem despite a nine-minute cameo against Macclesfield last time out, while 19-year-old Payne is out after suffering ankle damage in training whilst working his way back to fitness from a broken foot.
The Gills will also be without defender Tony Sinclair, who faces six weeks on the sidelines after it was discovered during a precautionary scan that he had a broken foot, while midfielder Chris Palmer is struggling with a knee problem.
However, Adebayo Akinfenwa may shake off a groin injury to play his part as Gillingham look to extend a run of three consecutive wins - all on the road - which has seen them move away from the relegation zone in npower League Two.
Source: PA
Source: PA