32v cambelt tools?!

Appear to have had a lucky escape, with one of the tensioners going ping, but the belt not going anywhere....just a little bit of slack :/

Have all the parts for the cambelt and waterpump change (also doing the oil cooler refurb whilst it's apart)...BUT....can't find the correct tools anywhere.

Does anyone know where to get them from? No one seems to make the cambelt tools for the S8 that locks the cams from the back of the block.

Please help?