Here is how I would suggest you know if you want to do this.
find some one with a new Winchester or a browning 725. That you can shoot These Guns already have alll the stuff you want done But from the factory. If you notice a big enough difference to your liking get it done. If not welll your dilemma is over
jb
FYI imho spending money on getting a gun to fit properly. Is better spent, For sporting clays