I have a pair of front anti-roll bar mounts available that have been reinforced with welded plates to prevent them from bending out of shape, which the OEM unmodified mounts are prone to warping. These came off a time attack RX7 and come with the OEM fixing bolts. Looking for £55 posted.
(http://img.photobucket.com/albums/v511/giggsy_eggs/IMG_6993.jpg)