Randy bought a Sky Cowboy helmet adapter kit, and we went through the rigmarole to install one of his Lightspeeds into it - it was quite a lot of work. After seeing how much easier life was for him at a Young Eagles event (and now having to have a helmet because everybody'll expect a helmet now,) I decided to build one up myself.
Starting from zero meant I could find a good deal on a headset, and I found a David Clark H10-13X.
I bought a red helmet, to go with the red gyro, not really thinking about the green headset. Whatever. When it arrived, I steeled myself for battle as there are no instructions for the H10-13X, but it was actually really easy.