Of course it might look confusing the first time, but it's sooooo easy (it really is!). I know legendary crafting from my head. You need three Legendary gifts. Two of them are for every legendary the same (clovers, T6, ecto's, world compl, obsidians blah blah).
Only one is unique depending on what legendary you make. But it's always 100 runestones, a sigil and two recipies.
All you have left is a precursor and you're done.
Same with ascended. I still don't have a full set yet but I know exactly what I need.