Mate, i just found this IS200 wide kit selling on ebay, hope this help
http://cgi.ebay.co.uk/Lexus-IS200-300-00-05-Full-Wide-Arch-Body-Kit-SALE_W0QQitemZ160423313033QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item2559f97e89
was looking at that kit the other day and looks ugly!!
i like the hks kit though