Buy the Winchester 101, they are great guns. I shoot a Winchester model 12 trap gun and a Winchester 101 skeet gun that I bought for field an trap and skeet. I have no issues using them in the field.
You are going the other way. You're buying a field gun to shoot trap, this will work but you will be handicap on the trap field. As your skill improves you will most likely want a full fledged trap gun.
Clifford L. Hughes