Hmm, I would alter Parivir a little bit. Since it was a job in Final Fantasy lore, it shouldn't be a class. Class should be something unique to ARR/XIV and not FF as a series.

Maybe something like Ronin (class) then Samurai and Parivir as jobs. It would make a good quest. Maybe you wander around as a Ronin, then you do a quest that gets you a lord to serve under (maybe the GC leaders) making you a full SAM. I'm not really sure of Parivir lore.