Shoot for tier helm and hands, Dino ring, black fuse boots and SoO trinkets and you will find yourself in a good hit range through spirit. I'm actually using expertise/ mastery gems to barely reach bit cap.
If you're not going to match the blue socket in your hands, it makes no sense to match the red one. That said the socket bonus is substantial, you should probably match that blue socket (and the red one) to pick it up. You could drop some spirit by not matching the red socket in your ring and gemming pure mastery instead.
I've had pretty awful luck in SoO so far and literally every piece aside from the 2 tier pieces I've gotten has spirit/crit on it. The crit is annoying, but at least still gets used. The spirit on the pieces, however, is enough that I can't even equip them without gimping myself a lot. It's annoying.