A while back someone suggested the Ford Probe turn signal switch as a good alternative for the Roadster. At the end of the day I solved my turn signal, headlight dimmer, hazard flasher and horn requirements.
Here are a couple of pics of the Probe switch.
The switch has turn signals and a spring-loaded pull to toggle the high/low beams. The lettered area lights up with the dash lights (if you wire it that way) and comes with a green cover on the bulb.
One cool thing is that the handle comes off to leave just a small shaft sticking out. If you wanted you could machine up a billet handle for it.
Here is a picture of the turn signal cancelling ring that sends an electronic signal to the switch.
Here are a couple of pics showing the bracket I made up for the cancelling ring as well as a drawing for it.