Ah, well, the LIRC only had the one config file. I'll raid the hifi-remote website's collection, see if they've got more keysets.

Yes, it should certainly be possible. In fact, I was originally going to make a process like that one of the main ways of searching for keysets. However, I've gotta tell you that such a system would be amazingly time consuming; you'd have to sit for hours to let it go through all the possibilities... Narrowing your search by brand and by type of target device simplifies the task considerably, and by the time you've done that, you can probably just go through the few keysets left by hand.

But if there's an interest, I can still try to throw something together...