For reference I fitted this with no issues using this tensioner
http://www.ebay.co.uk/itm/301279022947?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT" onclick="window.open(this.href);return false;
and belt number, from eurocarparts, 202745015:
http://www.eurocarparts.com/search/202745015/p/Car-Parts" onclick="window.open(this.href);return false;
No modifying needed.
Thanks