Bane emitter/Shock body/Catalyst Pummel i feel this would be the best combo for the saber.. then drill and tap some detail holes for brass nobs and some dremel detail engraving for the small electronics... and your in business!
you are correct, i was guessing the name of what i saw in my head, lol, just looked around on the saber site... and i think the best option for emitters, would be
1consular, with the grey painting over it... but leave the silver at the top.....
2 you could always go get a basic pummel, in silver finish, and ask for the bottom to be bored out like a stock sound pummel..... thus, you have the silver tip ring on top.. but defiantly, any of the shock bodies...(you would be making it grey to match the saber anyways)
stock sound pummel or consular emitter/Shock body/Catalyst Pummel... this is my last look at it, i think this is the winner... whether you go with a stock sound pummel, or the consular emitter... both would make a fine emitter detail to the saber your looking to make