Thanks Snakeyes,
That indeed was the review I was remembering. Now I guess I have to start looking around to see if they are indeed available anywhere. The picture of the "replacements" seems like they are a bit more "finished" and less of a raw product, but I am not going ot get into that price range for this little experiment. At $200 for the amps, and $300 for the M3's I would consider doing it tomorrow. It is just one of those larks that I sometimes go off on, and may not even come to fruition, but it is fun to ponder.
I knew you guys would know what amps I was talking about.