No offense, but this question is not really the most intelligent. If you have the dust, saving it is literally the same outcome as crafting the legendaries(whether golden or not) I would say craft 100% I just crafted golden Rag myself.
Ironically, this answer isn't the most intelligent. You state that it's the same outcome yet recommend crafting 100%. Saving and crafting do NOT get you the same outcome in terms of total dust value.