Deathwatch Librarian out of a GK Termi

[Brother Pugnax]

I know that this kind of topic gets discussed a whole lot, but I'm kinda stumped for inspiration and thought I'd see if anyone had some insight that would make the lightbulb go off and get me past my modeling-block. So here goes:

 

I'm making up a few squads of DW, and as a commander I wanted to do a libby in TDA. So, after some serching around on the boards, I've desided that it would be unlikely that the DW would be taking termi armor along with marines from most chapters (unless the techmarines were really not paying attention). That said, I figure the Inquisition would still be able to pull strings with Mars and get some TDA delivered on demand, much like the GK. So after all this fluff pondering, I desided that I would model the libby using a GK termi body as a base, since most of the iconography matches a DW libby (the books and such). This is my line of thinking, now the question:

 

I have a GK termi body, SS and a DW shoulder pad, but I'm kinda at a loss for the other arm. As I see it, I have two possibilities: 1. use the nemisis arm from the GK because it matches the armor design and the blade of the nemisis will look more 'libby-esque' with only a little green stuff, or 2. take the force staff arm from the standard librarian termi model to make it look more unique and less GK. I'm stuck, as I want the model to look different from your standard GK, but for the fluffy stuff I've hammered out, I'm not sure that more deviance would be the way to go. In any case, the shoulder pad would likely be librarian blue, mostly because I've yet to figure out a better pice of armor to paint libby colors. But that's another, endlessly discussed issue...

 

Anyone have an oppinion or some other idea I havn't thought of?

[GlauG]

How about the plastic Deathwatch Termie shoulders, got any of those handy? Maybe convert a Thunder Hammer arm and use one of those...