Mine's a Husky, got it on eBay for $60. There is currently one on there for $45 http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=4527076596&category=50072
All you need in addition is a mounting tab for the Sway Control Ball like this http://www.etrailer.com/Merchant2/mercha...ategory_Code=SC & weld it on the side of the ball mount. Or for more money eTrailer also carries bolt on ball mounts