Beautiful Beretta. I think it would be a shame to “alter” its current configuration, particularly since (as recommended) a properly fit model or a 28ga could make more sense. Unfamiliar with that model, does it have fixed chokes??
Another thing to consider for versatility would be removable chokes.
Sometimes the lowest recoiling shotgun is a 12 gauge, not a 16-20-28. The larger bores tend to be heavier guns. The heavier guns can still shoot diminished loads and target loads of very moderate recoil.
Generally, larger bore guns cost considerably less than small bore guns, so there is also the valuable proposition of getting a better gun for your money by settling with a 12 or 20 vs a 16-28-.410.