You're welcome! 
I'm back from holidays.
If you still approve of the changes you proposed above Arthur I would like to exchange Mentem for Terram, Magical Animal Companion for Visions and Doublet of the Impenetrable Silk for The Earth's Carbunkle. I'm keeping Stealth as I think it works well with his Imaginem focus.
Though, I'm thinking of swapping Footsteps of Slippery Oil for Unseen Arm if you allow it.
All of these changes are fine with me, Bearlord. Just put a note in your magus' thread about the substitutions being made.
Changes made in the character thread and I put a note about it at the bottom of the first post.