Amazing how this title is often the first pinball to the collection (but never the last !). Oscar is definitely one of the "good guys" in the hobby / industry.

With regard to the power cable, you can simply buy an extension cord from bunnings and then snip the female end off. You may also need a 275V Varistor, depending on the circuit diagram. Make sure you know exactly what you are doing with the wiring. Active must be fused. I would suggest a "tag and Test" be done on the game after your work and the correct line fuse used.