I have no pictures, just what you'll need. Which is why this ain't in P&M.
REQUIRED THINGS
A lump of Greenstuff
1x Space Marine Head with an attached Iron Halo (I clipped out an Iron Halo to size and greenstuffed where appropriate)
1x Sternguard Torso
1x Sternguard Backpack
1x Anvil Industry Static Praetorian Legs (Found here;
http://www.anvilindustry.co.uk/Exo-Lords/Legs/Praetorian-Static-Legs)
1x Space Marine Right Arm that is bent at a 90 degree angle toward his body
1x Devastator Sergeant (Old kit) Power Fist with pointy finger (One I used)

Or from an old finecast Sternguard Kit
1x Bolt Pistol
2x Ultramarines/Chapter Sculpted Pauldrons (Most Commander kits should come with ones you need)
Some Purity Seals
1x 32mm Base
Codex Reference Picture
Just here for people interested on how to make this guy. I think you guys are smart enough to work out how to build him!