After using a wrench out of the tool bag, I hastily affixed the side cover, but apparently did not secure the latching mechanism. So the side cover, and leather bag attached to it fell off while riding. I was able to locate it the next morning a few miles from my house, but it had been hit by a vehicle. I was not able to recover the lock set.
I have new side cover assemblies ordered from India (sold as a pair, Continental GT inexplicably half the price of Interceptor), but they do not come with the lock. I'm sure I can buy a generic lock, but I don't want to carry a second key. Searching Ebay and the usual RE vendors, I didn't see what I was looking for. Maybe I just need to look harder.
So the questions for the forum are: Where can I source a new lock? Are the side cover and ignition locks truly mated, or will any old RE key open the side lock?