The mystery guitar strikes again, I would have never guessed that the finish color could fade that much, so many old SG's keep their color, you just got lucky! Musican's Friend had Gibson Vintage style replacement tuners on sale for $59.95US, that might be a slightly better price, a set of those mini-buckers probaly ain't gonna be found for cheaps, sales volume isn't exactly high on those, might try scrounging as many repair shops as possible, there was a time when alot of people were replacing those with the full sized buckers and no one wanted them, an ad in the newspaper might turn up a couple of jewels.........