Priest Pot Usage

So I finally leveled my Priest to 75 after a year of pure lazyness and I'm finally out of my hell levels. I want to train at Himes but I know I'll need MG. What MP potions should I be using right now to survive there? I've been using MP Elixirs from 30 - 70 so I'm not sure what pots are a better deal. Please help this poor priest.

Assuming GMS, NLC pots. The 60% or 70% or whatever kind, not the 1500 ones.