@ExtremeWays
Are these boards common?
Every Blizzard 1240/1260.
Does anybody know the history?
Why do two board designs when single one does it?
And more importantly, can I just solder a 68060 in place of the '040 and have myself a real quick miggy?
Not quite. You need to lower the voltage (5->3.3) and change some jumpers on the board.