My apologies for picking at this detail, but to my knowledge thats not accurate.
The only playable splats who have access to linear magic are Sorcerers(mortal), Hunters(mortal), Kinfolk(mortal), Bastet and Kitsune(Fera). Bastet are specifically noted to have an affinity for stealing magic from others (Gifts, rituals, hedge magic) from others by observation, as do Kitsune, which is represented by the Breed-exclusive 7-dot Cat/Fox Magic Merit.
Mortals who are initiated into another splat (Kinfolk who become Garou, mortals who become Vampires) promptly lose all access to linear magic. Other splats have their own native magics(Vamps have blood sorcery, Mummies have Hekau, etc)
But they dont get linear sorcery Paths.
Think of it this way: If that was possible, the Technocracy would have drowned the Traditions in Victor clones with linear magic using the same means of teaching them everything else. The potential for producing HITMarks with linear sorcery is a moderately terrifying thing; the Technocracy already has a lot of infrastructural advantages.
Amoracchius isnt a person; more that there is an angel inside Amoracchius, and inside each of the Swords.
If I was going to make anything for Amoracchius, it would be a scabbard. But I honestly feel its more than a little presumptuous; a little like trying to paint someone else's house/car.
Good call.
We know the Mothers exist, but we've never met them, nor do we have any sort of relationship.
And frankly, we dont know enough about their role in the power structure to go blundering in there.