I can't say with any certainty, the closeup is very close up, looks like a conical intake filter of some sort. It's funny you recognise Emitter because the first thing I thought of (before scrolling down) was Pommel. As for bright ideas? I'm tapped out. Based on feedback from Writings by Borom and Kered and other Smiths I've read about with Hilt DIY, the common motivator is having/knowing what the end-game will be. Once you can imagine that end result, even if it isn't completely polished, gaining direction along the way is a road more easily travelled. Do you have a rough draft with what this Saber will ultimately look like?