Well, this is getting more interesting all the time. Turns out I had a gif of some 2-finger chords in my files from gawd-knows-where-or-when. They're for a 4-string instrument, and a bit of investigation showed the tuning would have to be G-D-A-E (low to high) - same as a fiddle or mandolin. I tried with a really terrible old tenor banjo that friend had. It'll take some work to get smooth & clean, but yeah, it works! Like I said, 4 or 5 chords and a capo, and you're away.

Hope you're still checking this thread, Don.

Sorry, but I don't know how to put a graphic in these posts. If anyone wants a copy of the file, send me an email to jeremiahATjeremiah.ca. (The 'AT is to hopefully foil 'phishing' programs - just change it to the symbol, or click the link itself.)