I'm surprised I havent seen any WFC Zeta Prime customs. Got me to thinking what could be used to create one. Please let me know if you have any good ideas. I think he looks alot like Galvatron Pic of him: Image:WFC ZetaPrime.jpg - Transformers Wiki
You could use Big Convoy as a base, plus heavy modding minus all kibble of course. Or a classics megs, if you want it to look like some of the Galvatrons made from that. How about a manga spawn toy?
Animated Blurr could be used for a general body shape, but I'm not too sure how well that would bode, considering how little bulk he has. You could also take the spear from the new figure of The Fallen that's coming out.