Sounds to me like you need to consult a real good gunbuilder who understands gun fit and have him determine what you need re. pitch, comb height/style, length, all of it. If you find somebody REALLY good, he will have a try gun that adjusts in every direction so you can determine exact dimensions. The old British aristos would never have bought a gun off the shelf. They demanded that the gun fit THEM, not the other way around. That is how they banged away on driven hunts for several hundred rounds in a day. Good luck. Getting smacked around by an ill-fitting gun just sucks.