Fazer thou rear caliper mod...

[HaVoC]

I'm wanting to put a fazer thou rear caliper (blue spot) on a fzs600, I've got one on the way to me from the states, the question is do I need to get a fazer thou torque arm and whats required to mount it and the caliper? Apologies as I know this has been discussed a million times before but I've just spent a good half hour looking though this forum for a guide!