In his role as the GKGM he gets a Hood and Icon of the Just (the storm shield counts as the icon since the actual Demon Hunters storm shield is awful - 4+ invuln in CC only vs a single attacker) for the 4+ invuln. He maintains his WYSIWYG by having his storm bolter mounted on his back.
If playing as a DW librarian then I ignore the Storm shield as a decoration and as a normal C:SM Librarian I ignore the storm bolter as decoration.
He is entirely plastic and only comes from 4 kits. Terminator Box, Assault Terminator Box, Sanguainary Guard and DA Veteran Box.
I am actually quite proud of his right shoulder pad as that required a bit of GS work since I had to break the book in half to make it bend backwards over the shoulder pad.
He has grey hair as he is a grizzled veteran, long versed in the use of the warp.
With this guy I now only need to make up a TDA Chaplain from bits and I will have a 100% plastic / resin army. No more heavy metal.