That's correct, but on the other hand he does seem to be immune to fear, he does have some kind of aura of courage effect on his companions as well, or perhaps inspire courage variant? He has some kind of healing proficiency that is out of the ordinary. As for spells it's hard to tell since no magic in LotR has an easy D&D counterpart. I would model magic more like SLA's than vancian casting, possibly including rituals.

Why isn't Boromir lawful? I don't see that at all. He probably has the flaw "Weak-willed"...