You're right Jim. I was perusing eBay, and I found several switch assemblies for the left side that would give me the signals, horn button and high / low beam. I'll just use a simple twist grip for the throttle (perhaps yours), and a dirt bike kill switch next to it.
Would you like to take my quad for a day and compare the wiring? I could also give you a handful of parts to try, including the mini atv throttle. I don't have a lot of room here yet, unless we worked in the driveway. That will change soon, since I made good progress on the kitchen today.
Let me know when you're ready for tubes, and I'll get my buddy to round them up (they're cheap). We need to video him installing the tubes while we're at it. He's always happy to help, and I'm always happy to take him riding.
