What is needed is:
1 A socket that fits the 060 (not the same as a 040 and you do not want to solder directly on the 060).
2 A voltage regulator, on the PPC board it's just moving a resistor to the right place.
3 A crystal that fits the 060 (remember the 040 only use half the crystal speed so a 040/25 uses the same crystal as a 060/50), again the PPC board have a small resistor for this (don't know why but that's the way it is).
4 Last but not least you need steady nerves and even steadier soldering hands cause it's not easy to solder off the 040 of the PPC board.