Make sure you have the machine shop check the bottom of the block/head well for cracks, they tend to crack near the petcock holes and into the water jacket (not the end of the world but easier to fix while its apart). Usually a polish is all the crank will need due to the way the poured babbit rod end wears, they tend to egg and if the journals are trued back to round then there will be excessive clearence/noise if reusing the out of round rods.