The main craft needed is cloth, and it should be as high as possible. There is probably a goldsmithing sub, but it's not too high. When a friend was desynthing these, he had, out of 7 tries, 1 HQ and 3 NQ (which is a lot higher success rate than I've ever heard of before). His clothcraft was I think 98+2, but his goldsmithing was only like 25 or 30. It was done on the optimal day/moon for success. Also, he made all the threads into cloth without breaks.