I'd hunt about 20 yards from the places they can get through the fence. They certainly go over if they want to, but the gaps are a better bet.
You probably don't have a blind, so cut some branches to make a natural blind and sit there as long as you can legally hunt.
I would use decoys. I think a single hen would be best this late in your season.
A box call or push-pin would be a good choice if you don't know how to run a mouth call. If you are calling, DO NOT over call. Make Tom think you are interested, but not enough to go to him.
Good luck.