I did mine a few months ago and http://www.flyingbrickperformance.com had the best price. $75
You need a 36 mm socket to get the nut off.
Flyingbrick actually doesn't stock the parts.Ordered some parts from them a couple of weeks ago....Brake parts and bushings)..The brake parts were dropped shipped from BMA and the bushings came from Ireland Engineering...Funny thing is the Rear Toe and Camber Kit I bought through FB was cheaper then on IE's site...