I have a set of 16v Calipers & Carriers for sale on e-bay, see link below
http://cgi.ebay.co.uk/VW-Golf-Mk2-GTi-16v-256mm-Calipers-Carriers_W0QQitemZ120138155444QQihZ002QQcategoryZ9889QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.co.uk/VW-Golf-Mk2-GTi-16v-256mm-Calipers-Carriers_W0QQitemZ120138155444QQihZ002QQcategoryZ9889QQssPageNameZWDVWQQrdZ1QQcmdZViewItem