Serpentine Set up reviews

Hi everyone, my dad is looking to add a serpentine set up to his 383. He has AC, and Power Steering. I have looked at the Mancini Racing set up, 440 source and March. Does anyone have experience with any of these or a different kit? I think the 440 source kit requires shims and I really don't want to deal with that, is there a kit that requires no shimming? If all of them have to be shimmed was there a kit one of you bought that you were happy with? Feedback and photos are greatly appreciated. Thanks