Hello Peter,
Sorry, not sure about a link for actually doing the cambelt.
Although the cambelt has just been done on the A3, I have been ‘banned’ from carrying out such jobs! - a few miles on the clock now, having passed my test in 1961, so it’s down to a neighbour free lance mechanic, with me being responsible for getting the parts.
My source of genuine parts at discount:- Discount Audi Parts -Cardiff . Part of Mon Motors, who are actually Cardiff Audi.
Contact is Phil ( very helpful). If have recently posted the contact details against another post. It’s glass of wine time for the vulnerable now, but just let me know is you fail to find them. They do mail order, and you can pay via. Paypal. Don’t be put off by their website just listing accessories - e mail Phil with your requirements.
Good luck and kind regards,
Gareth.