I bought a ignition system from PowerArc, and adapted it into a Lucas distributor from an Atlas. As for the carb, I haven't decided yet. I have a TT that I could use, but will likely buy something new that makes slogging through stop and go traffic a little easier. I was thinking a Mikuni round slide and try a UFO. Haven't considered the Keihin.... let me know how it goes please. Still flying a flag of convenience and keeping the bride happy, but should be back in the shop soon. Have the bits to fix the brakes, tires, clip-ons etc. waiting for me when I return. I'll post a couple of pictures of the internal disc brakes. I don't think any were imported into the US. They are IMHO an interesting setup and got more of a bad rap that they deserve.