Here are some pics of my WIP sternguard. They'll be painted as Crimson Fists. Pretty much entirely just plastic bits I had. These guys were great fun to make, I have a feeling I'll be putting together my Pedro Kantor soon.
Sergeant first, I decided to use a deathwatch shoulderpad just to avoid them all having the crux terminatus shoulderpad, also I figured if there's any item I might want two of in Kill Team it's a Power Fist.

These are the two special/heavy troopers I've built so far. One is a heavy flamer (needs tubing to go from fuel pack to weapon) and the other is a combi-melta (needs some filler, a parchment and a ammo clip for his empty hand)

Finally a couple bolter armed marines. Used storm bolter ammo as per many of the guides floating around. All the marines have the scroll cases somewhere, extra purity seals and a parchment somewhere.

and the obligatory group shot