Recently bought a beautiful Beretta 84 in near 100% condition and at a reasonable price. Have considered adding it to my carry rotation but decocking is by the 'wild west' method of pointing at a safe location and gently lowering the hammer by hand. Does anyone know if a straight parts swap from later model 84's that had a decocker/safety would reliably add that capability to this pistol? And perhaps what model would work best if its feasible (B,BB,F or FS).