Well... the Ford Performance kit costs $2000. The winch it comes with is the WARN Zeon 10-S, which has an MSRP $1,823.52, and traditionally can be found for around $1,650. (Edit— Although lately it's been much less now that the new winches have been released.)
So.... somewhere between $175 - $350 I reckon. Probably closer to the $175 than the $350.