Reid's side scored seven times in their two games against Forfar in the semi-finals, with the Somerset Park manager saying: "One thing that has changed recently is that our goals are coming from different players and not just Mark Roberts. He was the main threat for too long but now the likes of Michael Moffat, Scott McLaughlin and Alan Trouten are chipping in with goals and that makes us much more potent."
Defender Dean Keenan is still out for Ayr with forward Andy Rodgers needing a fitness test on a hamstring problem.
Brechin manager Jim Weir expects a tough test tonight. He said: "Any side that defeats Forfar in two games by a 7-4 aggregate must be a good side. We will need to be at our best starting at Somerset on Wednesday night to win through."
Charlie King remains out while defender Gerry McLauchlan faces a race to be fit due to a hamstring problem. On-loan Aberdeen striker Mitchel Megginnson has recovered from the illness that saw him substituted at Cowdenbeath on Saturday.