I bought my studs off a guy, they are the ones everyone has been using for the past few years in the vw diesels, its the cosworth kit. I just found out that ARP came out with a vw diesel specific head stud set. They are higher strength studs and are sold for 1.6 and 1.9 TDI applications. I would call ARP directly and buy them, your going to need 1-1/2 sets, and I don't know of any retail places that will break a set. I don't think they normally sell direct, but if you tell them the situation they will sell them to you rather than loose a sale to some other brand. My friend Alex did it and they were happy to help out. The 12pt nuts and washers come with the kit.
Here you go:
Jason