SL 500 Coilover conversion kit

I am trying to make my 03 sl500 a track build and I am going to get some kw coilovers for it but obviously the kit doesnt come with the other requirements like the power steering kit. I need recommendations on the other necessitites involved such as the power steering kit and I will need some quality sway bars. If I do end up swapping to coils does the engine need new mounts? I thought I read somewhere that it does. All help is welcome. Thanks