I have only three items not mastered and actually the precrafts are not an issue... the kryptonite and the hellfire ruby is. So expensive and when you open primal chests you get 10 horns.
Have you had any luck opening primals and getting a free BP step completion?
I ran out of Hellfire Rubies trying to master 2 of the newer BPs, can't imagine how much it's going to cost me to master the rest of the new primals.
The Oracle's Armor was my 1st raid BP, that's also sitting there unmastered, probably my longest.