No way would people pay anywhere near that for Willwoods, an AP 362mm 6 pot set up with DS2500 pads and everything except lines and fluid is £1562 inc VAT from GGR, and Reyland does very good AP prices as well. I would NEVER buy Willwood over AP/Brembos, as a lot of other people would not.

Personally I would expect a Willwood kit to come in at around the £1000 mark, but be closer to £800-850, there are a budget set up IMHO so need to be competing in the same area as lo-spec, comp brake etc...