Betting on the Forfar v Rangers Scottish Cup tie

Well looking at the odds, the former. Best price I can see for a Gers win is 1/8 (at Boylesports, Skybet, Betfair and Coral. The shock is 28/1 at Extrabet and 25/1 in other places. Maybe a replay? 9/1 with Extrabet, 44/5 on Betfair.