I looked at building a 375 Scovill/Hawk on a Kimber action/Montana stock.
At the end of the day, the cost seemed exhoribtant.
I bought a Winchester 375 H&H SS. Half the cost or less of the 375 Scovill/Hawk build. A pound or two heavier though.
Put lighter loads in the case? That will equal the Scovill and lighten the rifle............and qualify loonyism.