@Bowen: Those look fine. If there were any reason for it to get out of hand, I can always sunder it.
Which artifact rules were you asking about, by the way?
@Phaedrus: Those are, and work mostly because you're coming from Sarlona. For anyone else considering them, however, note that they can only be worn over padded, leather, or chain shirt armor; the Chahar-aina requires proficiency with medium armor, while the dastana requires proficiency with light armor.
Phaedrus, if you take these make sure to note that your armor spikes are added to the Chahar-aina, otherwise you wouldn't be able to add it on top of regular spiked armor.