We have a direct bolt, large case 220 amp unit for that vehicle. It of course comes with the correct pulley, and does over 125 amps by 800 rpm engine speed.
Be advised that 220 amps is a lot to turn with a single v-belt pulley, so the belt may slip some under full load. You will more than likely have to run the belt tension very tight to run an alternator that powerfull. That unit is regularly $299, but is currently on sale for $249 shipped until March 5th.