Originally Posted by Turkeycreek
Alternatively, I could put a toggle switch in its place so I could start it and put a secret kill switch somewhere under a body panel. Other ideas?
If you can't find a used one and won't buy new, making your own switch work is cheap and easy. You can find other ignition switches that will work fine, but you'll probably lose the steering lock, and getting it to fit in place is the pain of it.
I'm just guessing, but old Honda tumblers were pretty compact and probably go cheap on eBay. I'd see if they use the same amount of wires and give one a try, if you're wanting an actual keyed ignition. I'd lean towards some sturdy toggle switches with a hidden kill. There's plenty of inline kill switches for bikes out there. Or get yourself a racing switch with a lanyard if you wanna be cool.
And yeah, a new key is probably smartest.