Mantled is fine, just keep in mind you are burning some of your powers known unless you were planning on picking up all of the level 1 powers from that mantle.
Lets do standard bab & saves for simplicity.
I've added my Scribed Scrolls to the Statistics Block Section and have added more info in the description and personality bits.
And I propose the name Arcanis Taladas or Taladas Arcanis for the campaign name
I was actually considering The Reign of Tiers as the campaign name since it is all about the tier 2+ taking on the tier 1s.