I am not sure what "hog back" your talking about. I assume that you mean a Weatherby style stock. I have a CZ 458 Lott, and I don"t see a Weatherby stock (I own one) being the answer for recoil. Mercury recoil reducers, increased weight, quality recoil pad, and lastly porting if needed.
My CZ has a beautiful Turkish walnut stock, and solid stock pins in place. I intend to enhance this stock, not discard it.
My suggestion would be to actually shoot a 458 Lott before buying one. It is much more recoil than what most are used to. Then decide is maybe it is worth moving up to 458 Lott. There are many calibers that are "buffalo " worthy that have less recoil.
I am no expert, there are many here that are. Maybe they can comment?