You will see young padawan, you will see.
I'll post some WIP photos here soon. Maybe this week.
Personally I think that placing the pelvis shield over the top of the tabbard makes more sense. It is also a nice peice of surface detail and a shame to kill. In mine I have a tabard covering part of the chest and the "tail" of the robes flowing under the shield. So it looks like he is wearing the rest of the armour over the top of the under garment.
Add to that rare earth magnets on the torso and multiple arm options and you can choose either his sword of secrets and a storm bolter, or the thunder hammer and storm shield.
This guy will be a model of Belial.