TheHighLow

So i was contemplating on what type of spacers to get and decided that I prefer the safety features of the HR (Vs Ichi's or Akata's), however this is my first Lexus and I don't know how difficult it is to replace the oe wheels studs with longer H&R ones. Is it a royal PITA, one that requires removal of the brake caliper?
I also don't know if removing the studs from the F's rotors is different that from a ISx50...

P.S. I would be putting on spacers all around.

thanks for your help.