I just purchased a SVL Limbsaver recoil pad for my Stoeger 2000 and it fits (almost) perfectly. You may have to file down the plate slightly to get a good tight fit. It's SVL # 10401. Same model for the Benelli Super Black Eagle, Sport and M1.
If you haven't tried the Limbsaver recoil pads they make a WORLD of difference. I have one on all my long guns and they are excellent.